CN111623108A - High-rotation-speed oil seal of new energy gearbox - Google Patents
High-rotation-speed oil seal of new energy gearbox Download PDFInfo
- Publication number
- CN111623108A CN111623108A CN202010390288.3A CN202010390288A CN111623108A CN 111623108 A CN111623108 A CN 111623108A CN 202010390288 A CN202010390288 A CN 202010390288A CN 111623108 A CN111623108 A CN 111623108A
- Authority
- CN
- China
- Prior art keywords
- main lip
- outer diameter
- new energy
- oil seal
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3248—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports
- F16J15/3252—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings provided with casings or supports with rigid casings or supports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention discloses a high-rotation-speed oil seal of a new energy gearbox, which comprises an outer diameter, wherein a main lip is fixedly arranged on one side of the outer diameter, a metal framework is sleeved outside the main lip, the metal framework is embedded inside the outer diameter, a forming surface is arranged on one side of the main lip, a bidirectional oil return line is arranged on one side of the forming surface, a PTFE coating is sprayed on the surface of the forming surface, a spring groove is formed in the outer wall of the main lip, a spring is fixedly arranged on the inner wall of the spring groove, a blade tail is arranged on one side of the spring, the blade tail is fixedly arranged on the main lip, a front chamfer is formed in one side of the outer wall of the outer diameter, a rear chamfer is formed in the other. According to the invention, the molding surface is sprayed with the PTFE coating, so that the friction between the lip part and the shaft is reduced, the sealing is improved, the high-rotating-speed service life is prolonged by matching with the design of the main lip, in addition, the requirement of bidirectional operation is met through the bidirectional oil return line, the sealing state is kept under the high-rotating-speed state of the gearbox, and the oil leakage condition is avoided.
Description
Technical Field
The invention relates to the field of oil seals, in particular to a high-rotation-speed oil seal of a new energy gearbox.
Background
The oil seal is the seal of lubricating oil, it is the mechanical element used for sealing the grease, it separates the part needing to lubricate in the drive unit from the part that exerts force, will not let the lubricating oil seepage, the static seal and dynamic seal use the sealing member to be called the oil seal, in the application of the rotating oil seal, all there is liquid lubricating oil in the case of the transport body and need the oil seal with the position that links with outside, some are rubber to the oil seal before and after the gearbox, some are metal, most are steel skeleton rubber, but the existing product uses the problem with great wear, aging and cracking on the market. Some high rotational speeds in new energy vehicles can reach 20000rpm at present. The technical problem of wear resistance of the gearbox needs to be paid more attention to, related products are lacked in the market at present, and therefore the problem that better and more wear-resistant oil seal is urgently needed to be solved in the field of new energy automobiles is provided.
Disclosure of Invention
The invention aims to provide a high-rotation-speed oil seal of a new energy gearbox, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high rotational speed oil blanket of new forms of energy gearbox, includes the external diameter, one side of external diameter is fixed and is equipped with main lip, the outside cover of main lip is equipped with metal framework, metal framework inlays the inside of locating the external diameter, one side of main lip is equipped with the shaping face, one side of shaping face is equipped with two-way oil return line, the surface spraying of shaping face has the PTFE coating, the spring ditch has been seted up to the outer wall of main lip, the fixed spring that is equipped with of inner wall in spring ditch, one side of spring is equipped with the leaf tail, the leaf tail is fixed to be located on the main lip.
Preferably, a front chamfer is formed on one side of the outer wall of the outer diameter, and a rear chamfer is formed on the other side of the outer wall of the outer diameter.
Preferably, the other side of the outer diameter is fixedly provided with face carving teeth, and the inner side of the outer diameter is fixedly provided with inner carving teeth opposite to the face carving teeth.
Preferably, the surface of the outer diameter is fixedly provided with a dust-proof lip opposite to the main lip.
Preferably, the outer diameter and the main lip are both made of fluororubber.
Preferably, the metal framework is made of carbon steel.
The invention has the technical effects and advantages that:
through shaping face spraying PTFE coating, reduce the friction of lip and axle, improve sealedly, the design of cooperation main lip has avoided the high wearing and tearing and the ageing problem of checking up of traditional design under the high rotational speed, satisfy two-way moving needs through two-way oil return line in addition, guarantee to keep encapsulated situation under the high rotational speed state of gearbox, avoid the oil leak situation to appear, utilize facial tooth and inside tooth positioning when shaping of carving teeth, and increase external diameter and pilot hole leakproofness through the rubber coating design, avoid the oil leak situation to take place, influence the normal operating of gearbox.
Drawings
FIG. 1 is a schematic front view of the present invention.
In the figure: 1. front chamfering; 2. a metal skeleton; 3. an outer diameter; 4. chamfering the rear part; 5. carving teeth on the face; 6. a dust lip; 7. molding surface; 8. an oil return line; 9. a main lip; 10. a spring groove; 11. the leaf tail; 12. a spring; 13. and (4) internally carving teeth.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a high-rotation-speed oil seal of a new energy gearbox as shown in figure 1, which comprises an outer diameter 3, wherein a main lip 9 is fixedly arranged on one side of the outer diameter 3, a metal framework 2 is sleeved outside the main lip 9, the metal framework 2 is embedded inside the outer diameter 3, a forming surface 7 is arranged on one side of the main lip 9, a two-way oil return line 8 is arranged on one side of the forming surface 7, a PTFE coating is sprayed on the surface of the forming surface 7, the PTFE coating is polytetrafluoroethylene, has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, is almost insoluble in all solvents, has the characteristic of high temperature resistance, has an extremely low friction coefficient, a spring groove 10 is arranged on the outer wall of the main lip 9, a spring 12 is fixedly arranged on the inner wall of the spring groove 10, a blade tail 11 is arranged on one side of the spring 12, the blade tail 11 is fixedly arranged on the main lip 9, the blade tail 11 is used for preventing, back chamfer 4 has been seted up to the outer wall opposite side of external diameter 3, it is just led to install it to utilize preceding chamfer 1, rubber extrusion force when back chamfer 4 release installation, the fixed facial tooth 5 that is equipped with of opposite side of external diameter 3, the inboard of external diameter 3 is fixed and is equipped with the inside tooth 13 of carving opposite in tooth 5 position with facial tooth, utilize facial tooth 5 and inside tooth 13 of carving to fix a position when shaping, the fixed surface of external diameter 1 is equipped with the dustproof lip 6 relative with main lip 9 position, utilize dustproof lip 6 to prevent that outside dust from getting into, increase external diameter 3 and pilot hole leakproofness through the rubber coating design, spring 12 provides certain radial force, increase the leakproofness, two-way oil return line 8 satisfies two-way moving needs, increase lip leakproofness, guarantee two-way rotary seal, the sealed effect of oil blanket is improved from outside to inside, guarantee to keep sealed state under the high rotational speed state of gearbox.
The outer diameter 3 and the main lip 9 are made of fluororubber, are aging-resistant, heat-resistant and oil-resistant, are almost suitable for all lubricating oil, fuel oil and gasoline, are not easy to harden in oil containing extreme pressure additives, have small permanent compression deformation, and are high in hardness and strength because the metal framework 2 is made of carbon steel.
The working principle of the invention is as follows:
when the oil blanket installation is used, at first, it is just led to install it by preceding chamfer 1, rubber extrusion force when back chamfer 4 release installation, utilize facial tooth 5 and the inside tooth 13 of carving to fix a position when shaping, make main lip 9 seal oil and prevent revealing, through 7 spraying PTFE coatings of shaping face, reduce the friction of lip and axle, improve sealed, cooperation main lip 9 design extension high rotational speed life, satisfy two-way moving needs through two-way oil return line 8 in addition, increase lip leakproofness, guarantee two-way rotary seal, utilize spring 12 to provide certain radial force after the oil blanket is installed, increase the leakproofness, improve the sealed effect of oil blanket.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The standard parts used by the invention can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.
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 (6)
1. The utility model provides a high rotational speed oil blanket of new forms of energy gearbox, includes external diameter (3), its characterized in that, one side of external diameter (3) is fixed and is equipped with main lip (9), the outside cover of main lip (9) is equipped with metal framework (2), metal framework (2) inlay the inside of locating external diameter (3), one side of main lip (9) is equipped with profiled surface (7), one side of profiled surface (7) is equipped with two-way oil return line (8), the surface spraying of profiled surface (7) has the PTFE coating, spring ditch (10) have been seted up to the outer wall of main lip (9), the inner wall of spring ditch (10) is fixed and is equipped with spring (12), one side of spring (12) is equipped with leaf tail (11), leaf tail (11) are fixed to be located on main lip (9).
2. The high-rotation-speed oil seal of the new energy gearbox according to claim 1, wherein a front chamfer (1) is formed in one side of the outer wall of the outer diameter (3), and a rear chamfer (4) is formed in the other side of the outer wall of the outer diameter (3).
3. The high-rotation-speed oil seal of the new energy gearbox as claimed in claim 1, wherein a face notch (5) is fixedly arranged on the other side of the outer diameter (3), and an inner notch (13) opposite to the face notch (5) is fixedly arranged on the inner side of the outer diameter (3).
4. The high-speed oil seal of the new energy gearbox is characterized in that a dust-proof lip (6) opposite to the main lip (9) is fixedly arranged on the surface of the outer diameter (1).
5. The high-speed oil seal of the new energy gearbox according to claim 1, wherein the outer diameter (3) and the main lip (9) are both made of fluororubber.
6. The high-rotation-speed oil seal of the new energy gearbox according to claim 1, wherein the metal framework (2) is made of carbon steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390288.3A CN111623108A (en) | 2020-05-09 | 2020-05-09 | High-rotation-speed oil seal of new energy gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010390288.3A CN111623108A (en) | 2020-05-09 | 2020-05-09 | High-rotation-speed oil seal of new energy gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111623108A true CN111623108A (en) | 2020-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010390288.3A Pending CN111623108A (en) | 2020-05-09 | 2020-05-09 | High-rotation-speed oil seal of new energy gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111623108A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303236A (en) * | 2020-11-05 | 2021-02-02 | 嘉科（无锡）密封技术有限公司 | Bidirectional rotary sealing high-rotating-speed oil seal |
-
2020
- 2020-05-09 CN CN202010390288.3A patent/CN111623108A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303236A (en) * | 2020-11-05 | 2021-02-02 | 嘉科（无锡）密封技术有限公司 | Bidirectional rotary sealing high-rotating-speed oil seal |
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