CN203248674U - Oil seal for hydraulic rotary driver - Google Patents
Oil seal for hydraulic rotary driver Download PDFInfo
- Publication number
- CN203248674U CN203248674U CN 201320274124 CN201320274124U CN203248674U CN 203248674 U CN203248674 U CN 203248674U CN 201320274124 CN201320274124 CN 201320274124 CN 201320274124 U CN201320274124 U CN 201320274124U CN 203248674 U CN203248674 U CN 203248674U
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- Prior art keywords
- annular
- rotary driver
- gear shaft
- oil seal
- hydraulic rotary
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Abstract
The utility model belongs to the technical field of rotary driver parts, and particularly relates to an oil seal for the hydraulic rotary driver. The technical problem that the design is not reasonable in the prior art is solved. The oil seal for the hydraulic rotary driver is arranged on a gear shaft in a sleeved mode and comprises an annular body. The oil seal for the hydraulic rotary driver is characterized in that an annular groove is formed in one end of the annular body, the inner wall of the annular groove is provided with at least two lip parts which abut against sealing lips on the side portions of the gear shaft respectively, and the annular body is provided with a locking structure which enables the lip portions of the sealing lips to always abut against the gear shaft. Compared with the prior art, the oil seal for the hydraulic rotary driver has the advantages that the structure is simple, manufacturing is easy, manufacturing cost is low, the sealing effect is good, disengaging is not easy, and the service life is long.
Description
Technical field
The utility model belongs to revolution driver accessory technical field, especially relates to a kind of hydraulic gyration driver oil sealing.
Background technique
The hydraulic gyration driver is a kind of power equipment, and it generally is by oil hydraulic motor, break, and speed reducer, the valve group, the gear end structure forms, and is transferred to gear-box by oil hydraulic motor and plays the increase moment of torsion, and the effect that underspeeds realizes the requirement of low-speed big.Existing hydraulic gyration driver exists structural strength low with oil sealing, and working life is short, also has, and its sealing effect is poor, and the technical problem such as easily get loose.
For this reason, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of local-turning drive mechanism [application number: CN200920250503.9], comprises housing, coupling shaft, quadrant tooth cover, output shaft.One end of described coupling shaft is connected with the power axle key of valve control device, the fan tooth wheel case engagement in the other end and the described housing, and the inboard of described fan tooth wheel case is provided with the gear teeth, with the wheel tooth-like projection engagement of described output shaft.
Although such scheme has solved the problem that prior art exists to a certain extent, still exists design reasonable not, the poor and technical problem that easily gets loose etc. of sealing effect.
The model utility content
The purpose of this utility model is for the problems referred to above, provides a kind of design more reasonable, good sealing effect and the hydraulic gyration driver oil sealing that is difficult for getting loose.
For achieving the above object, the utility model has adopted following technical proposal: this hydraulic gyration driver uses oil-sealing sleeve on gear shaft, comprise annular solid, it is characterized in that, described annular solid one end is provided with circular groove, have the sealing lip that at least two lips are resisted against respectively the gear shaft sidepiece at the circular groove inwall, be provided with the lip that can make described sealing lip at annular solid and be resisted against all the time locking mechanism on the gear shaft.Obviously, the utlity model has simple in structure, be easy to make and low cost of manufacture, and good sealing effect is difficult for getting loose and long service life, meets the development trend of current social technology.
With in the oil sealing, described locking mechanism comprises and is arranged on the described sealing lip back side and the circular groove between described sealing lip at above-mentioned hydraulic gyration driver, and circular groove is opened on the sidewall of circular groove, is provided with clamp ring in annular slot.
With in the oil sealing, described annular slot is V-shaped at above-mentioned hydraulic gyration driver.Clamp ring is fixed.
With in the oil sealing, be provided with the annular support with the annular solid integrated injection molding at above-mentioned hydraulic gyration driver in the described annular solid.
With in the oil sealing, described annular solid is made by rubber at above-mentioned hydraulic gyration driver; Described annular support is made by metallic material.
Compared with prior art, this hydraulic gyration driver is with the advantage of oil sealing: have simple in structure, be easy to make and low cost of manufacture, and good sealing effect is difficult for getting loose and long service life, meets the development trend of current social technology.
Description of drawings
Fig. 1 is the structural representation that the utility model provides.
Fig. 1 is the structure for amplifying schematic diagram at A place among Fig. 1.
Among the figure, annular solid 1, circular groove 11, sealing lip 12, annular slot 13, clamp ring 14, annular support 15.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, 2, this hydraulic gyration driver uses oil-sealing sleeve on gear shaft, comprise annular solid 1, be provided with circular groove 11 at annular solid 1 one ends, have the sealing lip 12 that at least two lips are resisted against respectively the gear shaft sidepiece at circular groove 11 inwalls, be provided with the lip that can make described sealing lip 12 at annular solid 1 and be resisted against all the time locking mechanism on the gear shaft.Obviously, that the present embodiment has is simple in structure, be easy to make and low cost of manufacture, and good sealing effect is difficult for getting loose and long service life, meets the development trend of current social technology.
Specifically, the locking mechanism of the present embodiment comprises and is arranged on described sealing lip 12 back sides and the annular slot 13 between described sealing lip 12, and annular slot 13 is opened on the sidewall of circular groove 11, is provided with clamp ring 14 in annular slot 13.Secondly, the annular slot 13 here is V-shaped.
In addition, in annular solid 1, be provided with annular support 15 with annular solid 1 integrated injection molding; The annular solid 1 is here made by rubber; Described annular support 15 is made by metallic material.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as annular solid 1, circular groove 11, sealing lip 12, annular slot 13, clamp ring 14, annular support 15, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (5)
1. hydraulic gyration driver oil sealing, be enclosed within on the gear shaft, comprise annular solid (1), it is characterized in that, described annular solid (1) one end is provided with circular groove (11), have the sealing lip (12) that at least two lips are resisted against respectively the gear shaft sidepiece at circular groove (11) inwall, be provided with the lip that can make described sealing lip (12) at annular solid (1) and be resisted against all the time locking mechanism on the gear shaft.
2. hydraulic gyration driver oil sealing according to claim 1, it is characterized in that, described locking mechanism comprises and is arranged on described sealing lip (12) back side and is positioned at annular slot (13) between the described sealing lip (12), annular slot (13) is opened on the sidewall of circular groove (11), is provided with clamp ring (14) in annular slot (13).
3. hydraulic gyration driver oil sealing according to claim 2 is characterized in that, described annular slot (13) is V-shaped.
4. according to claim 1 and 2 or 3 described hydraulic gyration driver oil sealings, it is characterized in that, be provided with the annular support (15) with annular solid (1) integrated injection molding in the described annular solid (1).
5. hydraulic gyration driver oil sealing according to claim 4 is characterized in that, described annular solid (1) is made by rubber; Described annular support (15) is made by metallic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274124 CN203248674U (en) | 2013-05-16 | 2013-05-16 | Oil seal for hydraulic rotary driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320274124 CN203248674U (en) | 2013-05-16 | 2013-05-16 | Oil seal for hydraulic rotary driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248674U true CN203248674U (en) | 2013-10-23 |
Family
ID=49375113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320274124 Expired - Fee Related CN203248674U (en) | 2013-05-16 | 2013-05-16 | Oil seal for hydraulic rotary driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228180A (en) * | 2016-03-23 | 2017-10-03 | 上银科技股份有限公司 | Harmonic wave speed reducing machine with lubrication keeper |
-
2013
- 2013-05-16 CN CN 201320274124 patent/CN203248674U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228180A (en) * | 2016-03-23 | 2017-10-03 | 上银科技股份有限公司 | Harmonic wave speed reducing machine with lubrication keeper |
| CN107228180B (en) * | 2016-03-23 | 2019-06-28 | 上银科技股份有限公司 | Harmonic wave speed reducing machine with lubrication holder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20140516 |