CN102252084A - Gearbox sealing structure - Google Patents
Gearbox sealing structure Download PDFInfo
- Publication number
- CN102252084A CN102252084A CN2011100751933A CN201110075193A CN102252084A CN 102252084 A CN102252084 A CN 102252084A CN 2011100751933 A CN2011100751933 A CN 2011100751933A CN 201110075193 A CN201110075193 A CN 201110075193A CN 102252084 A CN102252084 A CN 102252084A
- Authority
- CN
- China
- Prior art keywords
- ring
- ring stand
- sealing
- gearbox
- supporting
- 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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- General Details Of Gearings (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a gearbox sealing structure, which comprises a gearbox body and an end cover, wherein a sealing piece is arranged between the gearbox body and the end cover; the sealing piece comprises a supporting ring frame and an annular sealing ring; a ring groove is formed along an inner wall face of the supporting ring frame; an edge rib which is clamped with the ring groove is arranged in the middle of an outside face of the annular sealing ring; and the upper and lower ends of the annular sealing ring respectively extend out of upper and lower end faces of the supporting ring frame. In the gearbox sealing structure, the annular sealing ring is matched with the supporting ring frame; when the gearbox body is fastened with the end cover, the annular sealing ring cannot be over-pressed and broken due to the protection of the supporting ring frame, so the sealing stability of the annular sealing ring is guaranteed; during installation of the sealing piece, because the annular sealing ring is fixed by the supporting ring frame, the sealing piece can be more convenient to install without concern about displacement of the annular sealing ring; and the gearbox sealing structure can prolong the service life of the sealing piece and facilitate replacement of the annular sealing ring.
Description
Technical field
The present invention relates to gearbox.
Background technique
In various products such as gear-box, piston, oil cylinder, sealability between its housing is to guarantee one of essential condition that product is working properly, existing structure is provided with the seal ring caulking groove usually and seal ring is installed is then sealed between housing, its deficiency is to change in the caulking groove seal ring over to relatively trouble, jumps out easily; Another common structure is the directly flat seal ring realization sealing of installation of jointing end face at housing, and Sealing by bloated bad, also occurred shift phenomenon easily, thereby influences sealability easily when its deficiency was to connect too closely.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of gearbox sealing configuration, and is simple in structure, can prevent that the excessive Sealing that causes of fastening force by bloated bad, also have Sealing and installs and change advantage easily.
For solving the problems of the technologies described above, the present invention adopts following technological scheme: a kind of gearbox sealing configuration, comprise gear box and end cap, be provided with Sealing between gear box and end cap, it is characterized in that: described Sealing comprises that one supports a ring stand and an O-ring seal, internal face along described support ring stand is provided with annular groove, and described O-ring seal outer side surface middle part is provided with the limit muscle with described annular groove clamping, and the upper and lower end of O-ring seal stretches out the upper and lower end face of supporting ring stand respectively.
Improved, the end face of described gear box and end cap is provided with and prevents that O-ring seal breaks away from the retaining muscle that supports ring stand.
Preferably, described retaining muscle height can guarantee that for supporting 0.2～0.4 times of ring stand thickness O-ring seal is difficult for deviating from, and makes it that sufficient pressure space of expanding is arranged simultaneously.
Preferably, described O-ring seal is stretched out the length that supports the ring stand upper-end surface for supporting 0.2～0.6 times of ring stand thickness, and described O-ring seal is stretched out the length that supports the ring stand lower end surface for supporting 0.2～0.6 times of ring stand thickness.The sealing effect and the stability of Sealing are all guaranteed preferably.
Improved, described support ring stand outer side surface is equipped with some locating flange ears, and the locating flange ear is corresponding with locating column on being located at the gear box upper-end surface, by locating flange ear and locating column Sealing is realized two-way location.
Improved, described annular groove is a groove, and the support ring stand bottom of the support ring stand top of annular groove top and annular groove below is by the one-body molded connection of some cylinders, and described limit muscle is provided with the C shape catching groove that fastens with described cylinder.Make more stable being positioned at of O-ring seal support on the ring stand.
The present invention cooperates O-ring seal with the support ring stand; when gear box and end cap are fastening; owing to support the protective action of ring stand; make seal ring can not pressed tension and expand badly, guarantee the stability of its sealing, when Sealing is installed owing to support ring stand and seal ring fixed; make easier for installation; do not worry the seal ring displacement, this structure can prolong the working life of Sealing, and it is convenient to change seal ring.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is the cooperating structure schematic representation of gearbox sealing configuration of the present invention;
Fig. 2 is the structural representation of new type sealing element of the present invention;
Fig. 3 is an A-A cutaway view Amplified image among Fig. 2;
Fig. 4 is the structural representation of O-ring seal;
Fig. 5 is for supporting the lateral plan of ring stand.
Embodiment
Extremely shown in Figure 5 as Fig. 1, be gearbox sealing configuration of the present invention, comprise gear box 4 and end cap 3, be provided with Sealing between gear box and end cap, described Sealing comprises that one supports a ring stand 1 and an O-ring seal 2, internal face along described support ring stand is provided with annular groove 11, described O-ring seal outer side surface middle part is provided with the limit muscle 21 with described annular groove clamping, the upper and lower end 22 of O-ring seal stretches out the upper and lower end face 12 of supporting ring stand respectively, support the upper and lower end face of ring stand and select plane structure usually for use, present embodiment is plane structure, and the end face of described gear box 4 and end cap 3 is provided with and prevents that O-ring seal breaks away from the retaining muscle 5 that supports ring stand.Retaining muscle 5 highly is 0.2～0.4 times of support ring stand thickness, described O-ring seal is stretched out the length that supports the ring stand upper-end surface for supporting 0.2～0.6 times of ring stand thickness, described O-ring seal is stretched out the length that supports the ring stand lower end surface for supporting 0.2～0.6 times of ring stand thickness, described support ring stand outer side surface is equipped with some locating flange ears 13, the locating flange ear is corresponding with locating column 41 on being located at the gear box upper-end surface, by locating flange ear and locating column Sealing is realized two-way location.Described annular groove 11 is a groove, and the support ring stand bottom of the support ring stand top of annular groove top and annular groove below is by some cylinder 14 one-body molded connections, and described limit muscle is provided with the C shape catching groove 23 that fastens with described cylinder.Make more stable being positioned at of O-ring seal support on the ring stand.
Claims (6)
1. gearbox sealing configuration, comprise gear box (4) and end cap (3), be provided with Sealing between gear box and end cap, it is characterized in that: described Sealing comprises that one supports a ring stand (1) and an O-ring seal (2), internal face along described support ring stand is provided with annular groove (11), described O-ring seal outer side surface middle part is provided with the limit muscle (21) with described annular groove clamping, and the upper and lower end of O-ring seal stretches out the upper and lower end face of supporting ring stand respectively.
2. gearbox sealing configuration according to claim 1 is characterized in that: the end face of described gear box and end cap is provided with and prevents that O-ring seal breaks away from the retaining muscle (5) that supports ring stand.
3. gearbox sealing configuration according to claim 2 is characterized in that: described retaining muscle height is 0.2～0.4 times of support ring stand thickness.
4. gearbox sealing configuration according to claim 2, it is characterized in that: described O-ring seal is stretched out the length that supports the ring stand upper-end surface for supporting 0.2～0.6 times of ring stand thickness, and described O-ring seal is stretched out the length that supports the ring stand lower end surface for supporting 0.2～0.6 times of ring stand thickness.
5. gearbox sealing configuration according to claim 1 and 2 is characterized in that: described support ring stand outer side surface is equipped with some locating flange ears (13), and the locating flange ear is corresponding with locating column (41) on being located at the gear box upper-end surface.
6. according to claim 1 or 2 or 3 or 4 described gearbox sealing configurations, it is characterized in that: described annular groove is a groove, the support ring stand bottom of the support ring stand top of annular groove top and annular groove below is by the one-body molded connection of some cylinders (14), and described limit muscle is provided with the C shape catching groove (23) that fastens with described cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100751933A CN102252084A (en) | 2011-03-28 | 2011-03-28 | Gearbox sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100751933A CN102252084A (en) | 2011-03-28 | 2011-03-28 | Gearbox sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102252084A true CN102252084A (en) | 2011-11-23 |
Family
ID=44979561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100751933A Pending CN102252084A (en) | 2011-03-28 | 2011-03-28 | Gearbox sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102252084A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043087A (en) * | 2019-12-12 | 2020-04-21 | 四川凌峰航空液压机械有限公司 | Open piston for accumulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201461124U (en) * | 2009-06-29 | 2010-05-12 | 吴庆柯 | Combined sealing ring for sealing single and double directions |
| CN101825187A (en) * | 2009-03-05 | 2010-09-08 | Bue-Sch配件有限公司 | Double side acting sealing ring for valve device |
| CN202048167U (en) * | 2011-03-28 | 2011-11-23 | 许晓华 | Sealing structure for gearbox |
-
2011
- 2011-03-28 CN CN2011100751933A patent/CN102252084A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101825187A (en) * | 2009-03-05 | 2010-09-08 | Bue-Sch配件有限公司 | Double side acting sealing ring for valve device |
| CN201461124U (en) * | 2009-06-29 | 2010-05-12 | 吴庆柯 | Combined sealing ring for sealing single and double directions |
| CN202048167U (en) * | 2011-03-28 | 2011-11-23 | 许晓华 | Sealing structure for gearbox |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043087A (en) * | 2019-12-12 | 2020-04-21 | 四川凌峰航空液压机械有限公司 | Open piston for accumulator |
| CN111043087B (en) * | 2019-12-12 | 2021-07-06 | 四川凌峰航空液压机械有限公司 | Open piston for accumulator |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111123 |