CN213744919U - Marine outboard motor is with keeping apart sealed sea water and gear oil double-spring oil blanket - Google Patents

Abstract

The utility model discloses a marine hanging machine is with keeping apart sealed sea water and gear oil double-spring oil blanket, including long skeleton, long skeleton is set up to the type of falling L to the short skeleton of one side fixedly connected with of long skeleton, and short skeleton also sets up to the type of falling L, the surface of long skeleton and short skeleton all is provided with outer rubber layer, the fixed first curved portion that is provided with in bottom of short skeleton to first spring ditch has been seted up at the top of first curved portion, the bottom of first curved portion has set gradually first tangent plane and second tangent plane from a left side to the right side, the fixed second curved portion that is provided with in bottom of long skeleton to the second spring ditch has been seted up at the top of second curved portion, the bottom of second curved portion has set gradually third tangent plane and fourth tangent plane from a left side to the right side. In short, this application technical scheme has not only increased the use scene, has still ensured the leakproofness of oil blanket, has promoted the life of oil blanket.

Description

Marine outboard motor is with keeping apart sealed sea water and gear oil double-spring oil blanket

Technical Field

The utility model relates to an oil blanket technical field specifically is a marine double-spring oil blanket of sea water and gear oil of keeping apart for hanging machine.

Background

The oil seal generally divide into monomer type and assembled type, the assembled type is that skeleton and lip material can the independent assortment, generally is used for special oil seal, can divide into multiple form and different names from the sealing effect, characteristics, structural style, operating condition and sealing mechanism etc. of oil seal, but is used to generally call the rotary shaft lip seal circle oil seal, and static seal and dynamic seal (generally reciprocating motion) are called the sealing member with the sealing member, and the representative form of oil seal is the TC oil seal, and this is the two lip oil seals of taking the self-tightening spring that a rubber totally wrapped, and the oil seal of general saying often refers to this kind of TC skeleton oil seal, and the commonly used material of oil seal has: nitrile rubber, fluororubber, silicon rubber, acrylate rubber, polyurethane, polytetrafluoroethylene and the like, wherein the nitrile rubber (NBR) has better heat resistance and wear resistance, resists various lubricating oil, lubricating grease, oil-gas mixture and the like, has the applicable temperature of-30 to 120 ℃, can not be used in phosphate-series hydraulic oil and gear oil containing extreme pressure additives, has stable neutral performance in gasoline and low aniline point mineral oil, has excellent oil resistance and heat resistance of polyacrylate rubber (ACM), resists wear, ozone and ultraviolet radiation, is particularly suitable for lubricating oil containing extreme pressure agent, gear oil, motor oil, engine oil, petroleum hydraulic oil and the like, is suitable for working in the range of-30 to 150 ℃, is ageing-resistant, heat-resistant and oil-resistant, is almost suitable for all lubricating oil, fuel oil and gasoline, is not easy to harden in oil containing extreme pressure additives, but the cold resistance and the high-temperature wear resistance are poor, the permanent compression deformation is large, the temperature is-20 to 250 ℃, and the silicon rubber has outstanding high and low temperature resistance and can be used for a super-long time at 150 ℃ without performance change; can be continuously used for 10000h under 200 ℃ and can keep the advantages of special use elasticity, ozone resistance, weather resistance and the like within the working temperature range of-70-260, polytetrafluoroethylene has outstanding chemical stability, thermal stability, friction reduction and self-lubrication, the cracking temperature is more than 400, therefore, the polytetrafluoroethylene can normally work within the temperature range of-200-300 ℃, has excellent corrosion resistance to chemicals, solvents, hydroxyl compounds and acids except free fluorine and alkali metals, nitrile rubber and fluororubber materials are oil seals which are widely used, the cost of the former is low, but the temperature resistance and the sealing property are obviously improved, but the cost is higher, and the nitrile rubber and the fluororubber materials still have certain poor commonness of common rubber materials, such as poor wear resistance, short service life, particular sensitivity to eccentric reaction of a shaft and the like, the leakage phenomenon is still more common, the PTFE oil seal is a product with higher technical content, the development direction of the oil seal in the future is, when the material of the oil seal is selected, the compatibility of the material to a working medium, the adaptability to a working temperature range and the following capability of a lip edge to a rotating shaft during high-speed rotation need to be considered, the temperature of the lip edge of the general oil seal is 20-50 ℃ higher than that of the working medium during working, attention needs to be paid when the material of the oil seal is selected, and the working range of the oil seal is related to the material used by the oil seal: when the material is Nitrile Butadiene Rubber (NBR), the temperature is-40-120 ℃, acrylic rubber (ACM) -30-180 ℃, fluorine rubber (FPM) -25-300 ℃, oil seals are needed for all parts which are connected with the outside and have liquid lubricating oil in the operation body box, and the existing marine and gear oil double-spring oil seal for isolating and sealing the marine oil and the gear oil for the marine hanging machine has the following defects: firstly, the method comprises the following steps: the oil seal has no adaptability, one oil seal can only be used in scenes with one size, and the oil seal cannot have good adaptability in some occasions; II, secondly: the sealing performance of the oil seal is poor, and the service life is short; therefore, the technical scheme of the application provides a novel marine double-spring oil seal for the on-hook machine for isolating and sealing seawater and gear oil.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a marine double-spring oil blanket of sea water and gear oil of keeping apart for hanging machine has solved that current oil blanket does not have the leakproofness of suitability, oil blanket relatively poor, the shorter problem of life.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a marine outboard motor is with keeping apart sealed sea water and two spring oil seals of gear oil, includes long skeleton, long skeleton is the type of falling L to the short skeleton of one side fixedly connected with of long skeleton, and short skeleton also sets up to the type of falling L, the surface of long skeleton and short skeleton all is provided with outer rubber layer, the fixed first curved portion that is provided with in bottom of short skeleton to first spring ditch has been seted up at the top of first curved portion, the bottom of first curved portion has set gradually first tangent plane and second tangent plane from a left side to the right side, the fixed second curved portion that is provided with in bottom of long skeleton to the second spring ditch has been seted up at the top of second curved portion, the bottom of second curved portion has set gradually third tangent plane and fourth tangent plane from a left side to the right side.

Preferably, a first spring is installed in the first spring groove, and a second spring is installed in the second spring groove.

Preferably, a dust lip is arranged at one side of the bottom angle of the second curved portion, and the dust lip is positioned at one side far away from the third cutting and trimming surface.

Preferably, the two sides of the top of the long framework are symmetrically provided with a rear chamfer and a front chamfer.

Preferably, a middle chamfer is arranged at the top of the short framework and at one side position far away from the long framework.

Advantageous effects

The utility model provides a marine double-spring oil blanket of sealed sea water of isolation and gear oil for hanging machine. Compared with the prior art, the method has the following beneficial effects:

1: this marine double-spring oil blanket of sea water and gear oil is sealed with keeping apart to for hanging machine, through being provided with long skeleton and short skeleton, in the installation, can adapt to two different sizes, make the suitability higher like this to under some specific use scenes, a skeleton has no way to play fine support effect, and such setting has increased the use scene of this oil blanket.

2: this marine double-spring oil blanket of sealed sea water of isolation and gear oil for hanger through the eager face of repairing that is provided with four oil sealings for leakproofness obtains the guarantee in the use of oil blanket, wherein arbitrary two to three eager face of repairing damage after ageing, can also continue to use, like this indirect promotion the life of this oil blanket.

In short, this application technical scheme has not only increased the use scene, has still ensured the leakproofness of oil blanket, has promoted the life of oil blanket.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. first cutting and trimming; 2. a first curved portion; 3. a second cut and repair face; 4. a third cut and repair face; 5. a fourth cut and repair face; 6. a second curved portion; 7. chamfering the rear part; 8. a long framework; 9. middle chamfering; 10. a short skeleton; 11. a first spring; 111. a first spring groove; 12. front chamfering; 13. an outer rubber layer; 14. a second spring; 141. a second spring groove; 15. and (4) dust lip prevention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made 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 "first" and "second" 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; 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.

Referring to fig. 1, the present invention provides a technical solution: a marine double-spring oil seal for an outboard motor for isolating and sealing seawater and gear oil comprises a long framework 8, wherein the long framework 8 is arranged to be of an inverted L shape, one side of the long framework 8 is fixedly connected with a short framework 10, the short framework 10 is also arranged to be of the inverted L shape, outer rubber layers 13 are arranged on the surfaces of the long framework 8 and the short framework 10, a first curved part 2 is fixedly arranged at the bottom of the short framework 10, a first spring ditch 111 is formed in the top of the first curved part 2, a first trimming surface 1 and a second trimming surface 3 are sequentially arranged at the bottom of the first curved part 2 from left to right, a second curved part 6 is fixedly arranged at the bottom of the long framework 8, a second spring ditch 141 is formed in the top of the second curved part 6, a third trimming surface 4 and a fourth trimming surface 5 are sequentially arranged from the bottom of the second curved part 6 to right, and a plurality of the trimming surfaces are arranged to ensure the sealing performance of the oil seal, the outer rubber layer 13, the first curved part 2 and the second curved part 6 are all made of nitrile rubber, have good heat resistance and wear resistance, are resistant to various lubricating oil, lubricating grease, oil-gas mixture and the like, and are applicable to the temperature of minus 30-120 ℃.

Further, the first spring 11 is installed inside the first spring groove 111, the second spring 14 is installed inside the second spring groove 141, and the double-spring design is adopted, so that the use tightness is improved, and the use effect is enhanced.

Further, one side position of the base angle of the second curved portion 6 is provided with a dust lip 15, and the dust lip 15 is located on one side far away from the third cutting and trimming surface 4, and the dust lip 15 prevents the interference of dust, and the effect and the life of use are promoted.

Further, the bilateral symmetry at long skeleton 8 top is provided with back chamfer 7 and preceding chamfer 12, and preceding chamfer 12 and back chamfer 7's setting for it is more convenient in the time of the installation.

Further, the short framework 10 top and the position of one side of keeping away from long framework 8 are provided with well chamfer 9, and the setting of well chamfer 9 for the installation of short framework 10 is more convenient, laborsaving.

And those not described in detail in this specification are well within the skill of those in the art.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a marine double-spring oil blanket of sea water and gear oil of keeping apart for hanging aircraft, includes long skeleton (8), its characterized in that: the long framework (8) is arranged in an inverted L shape, one side of the long framework (8) is fixedly connected with a short framework (10), the short framework (10) is also arranged in an inverted L shape, the surfaces of the long framework (8) and the short framework (10) are both provided with an outer rubber layer (13), the bottom of the short framework (10) is fixedly provided with a first curve part (2), and the top of the first curved part (2) is provided with a first spring groove (111), the bottom of the first curved part (2) is provided with a first cutting and trimming surface (1) and a second cutting and trimming surface (3) from left to right in sequence, a second curved part (6) is fixedly arranged at the bottom of the long framework (8), and the top of the second curved part (6) is provided with a second spring groove (141), the bottom of the second curved part (6) is sequentially provided with a third cutting and trimming surface (4) and a fourth cutting and trimming surface (5) from left to right.

2. The double-spring oil seal for isolating and sealing seawater and gear oil for the marine on-hook according to claim 1, characterized in that: a first spring (11) is installed in the first spring groove (111), and a second spring (14) is installed in the second spring groove (141).

3. The double-spring oil seal for isolating and sealing seawater and gear oil for the marine on-hook according to claim 1, characterized in that: and a dust lip (15) is arranged at one side of the bottom angle of the second curved part (6), and the dust lip (15) is positioned at one side far away from the third cutting and trimming surface (4).

4. The double-spring oil seal for isolating and sealing seawater and gear oil for the marine on-hook according to claim 1, characterized in that: the two sides of the top of the long framework (8) are symmetrically provided with a rear chamfer (7) and a front chamfer (12).

5. The double-spring oil seal for isolating and sealing seawater and gear oil for the marine on-hook according to claim 1, characterized in that: and a middle chamfer (9) is arranged at the top of the short framework (10) and at one side position far away from the long framework (8).

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