CN102345727A - Planet reductor brake - Google Patents
Planet reductor brake Download PDFInfo
- Publication number
- CN102345727A CN102345727A CN2011102027541A CN201110202754A CN102345727A CN 102345727 A CN102345727 A CN 102345727A CN 2011102027541 A CN2011102027541 A CN 2011102027541A CN 201110202754 A CN201110202754 A CN 201110202754A CN 102345727 A CN102345727 A CN 102345727A
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- China
- Prior art keywords
- brake
- seal ring
- piston
- seal
- groove
- 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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- 238000007789 sealing Methods 0.000 claims abstract description 18
- 239000003638 chemical reducing agent Substances 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 4
- 229920001778 nylon Polymers 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The invention discloses a planet reductor brake, and belongs to the technical field of planet reductors. The brake comprises a brake shell, wherein a piston is arranged in the brake shell, a seal cavity is arranged between the piston and the brake shell, and the joint of a piston excircle and an brake shell inner wall is provided with a seal groove; and a seal ring is arranged in the seal groove, the seal ring is an H-shaped seal ring, the radial inner and outer circles of the seal ring are respectively provided with a groove, the axial two sides of the seal ring are flat surfaces, and the sections of the axial two sides of the seal ring are H-shaped. The brake adopting the H-shaped seal ring provided by the invention has the beneficial effects of smaller frictional resistance and starting resistance and good sealing effect; the non-circular section can prevent rolling during the reciprocating motion, and the wearability is good; and by using the brake provided by the invention, the problem of oil spilling because of insufficient radial compression quantity caused by large transformation of the existing star seal ring can be solved, thereby improving the brake sealing effect and the whole brake performance.
Description
Technical field
The present invention relates to a kind of planetary speed reducer break, belong to the planetary speed reducer technical field.
Background technique
At present, constructional engineering machinery, handling machinery etc. requires the break ubiquity oil leakage phenomenon of supporting planetary speed reducer, and this is an insoluble always problem, has restricted the development of China's engineering machinery industry to a certain extent.And the main cause that produces the leakage of oil problem is: the existing star seal ring of the many employings of break inner carrier sealing, it under high pressure is out of shape greatly, causes the radial compression amount not enough, causes sealing effect not good, produces the leakage of oil problem.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the present invention provides a kind of planetary speed reducer break, adopts the H RunddichtringO, improves sealing effect, solves the leakage of oil problem.
The present invention realizes through following technological scheme: a kind of planetary speed reducer break; It comprises brake casing; Piston is housed in the brake casing; Between piston and the brake casing Seal cage is arranged; There is seal groove junction at described outside piston and brake casing inwall; Seal ring is housed in the seal groove; Described seal ring is the H RunddichtringO; The sealing circle radially all is being manufactured with groove on the Internal and external cycle; The axial both sides of seal ring are the plane; The cross section is H shape, and the lip cross section is a circular arc, between lip and the groove arc transition is arranged.
There is the nylon back-up ring on the both sides of described seal ring.
The invention has the beneficial effects as follows: adopt the H RunddichtringO, between sealing lip, form lubricating cavity, have the less surface friction drag and the resistance of start; Reduce deformation rate, flash locations is recess in the cross section, good sealing effect; Non-circular cross-section can be avoided when to-and-fro motion, producing and roll; Wear resistance is good.It is big to have solved the distortion of existing star seal ring, causes the radial compression amount not enough and the leakage of oil problem that produces has improved break sealing effect and complete machine performance.
Description of drawings
With embodiment the present invention is further specified with reference to the accompanying drawings below.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a H RunddichtringO cross section structure schematic representation.
1, brake casing, 2, the nylon back-up ring, 3, seal ring, 4, piston, 5, Seal cage.
Embodiment
Below in conjunction with embodiment the present invention is further specified.Like Fig. 1, shown in Figure 2; A kind of planetary speed reducer break; It comprises brake casing 1; Piston 4 is housed in the brake casing 1; Between piston 4 and the brake casing 1 Seal cage 5 is arranged; There is seal groove junction at described piston 4 cylindricals and brake casing 1 inwall; Seal ring 3 is housed in the seal groove; Described seal ring 3 is the H RunddichtringO; The sealing circle radially all is being manufactured with groove on the Internal and external cycle, and the axial both sides of seal ring 3 are the plane, and the cross section is H shape; The lip cross section is a circular arc, between lip and the groove arc transition is arranged.There is nylon back-up ring 2 on the both sides of described seal ring 3.
The H RunddichtringO is a kind of self-tightening sealing RunddichtringO of radially installing, and axial power depends on the pressure P of system, and along with the radial compression amount of the rising H RunddichtringO of pressure P increases, total sealability improves, thereby forms sealing reliably.Form lubricating cavity between its sealing lip, have the less surface friction drag and the resistance of start; Reduce deformation rate, flash locations is recess in the cross section, good sealing effect; Non-circular cross-section can be avoided when to-and-fro motion, producing and roll; Wear resistance is good.
Claims (2)
1. planetary reducer brake; It comprises brake casing (1); Piston (4) is housed in the brake casing (1); Between piston (4) and the brake casing (1) annular seal space (5) is arranged; There is seal groove junction at described piston (4) cylindrical and brake casing (1) inwall; Sealing ring (3) is housed in the seal groove; It is characterized in that: described sealing ring (3) is the H RunddichtringO; The sealing circle radially all is being manufactured with groove on the Internal and external cycle; The axial both sides of sealing ring (3) are the plane; The cross section is H shape, and the lip cross section is a circular arc, between lip and the groove arc transition is arranged.
2. planetary speed reducer break according to claim 1 is characterized in that: there is nylon back-up ring (2) on the both sides of described seal ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102027541A CN102345727A (en) | 2011-07-20 | 2011-07-20 | Planet reductor brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102027541A CN102345727A (en) | 2011-07-20 | 2011-07-20 | Planet reductor brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102345727A true CN102345727A (en) | 2012-02-08 |
Family
ID=45544670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102027541A Pending CN102345727A (en) | 2011-07-20 | 2011-07-20 | Planet reductor brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102345727A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956875A (en) * | 2017-12-13 | 2018-04-24 | 索特传动设备有限公司 | Dust blowing sealing ring and reducer brake |
| CN109611535A (en) * | 2018-12-27 | 2019-04-12 | 南京高速齿轮制造有限公司 | High pressure dynamic sealing structure suitable for gear-box |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB762232A (en) * | 1954-05-22 | 1956-11-28 | Wright Howard Clayton Ltd | A new or improved sealing ring |
| US3542380A (en) * | 1967-10-04 | 1970-11-24 | Euratom | Ring seal |
| CN2414257Y (en) * | 1999-12-21 | 2001-01-10 | 南京奥亿达液压气动技术有限公司 | Piston H-shape oil sealing device |
| US7234704B2 (en) * | 2004-02-09 | 2007-06-26 | Ludwig Ehrhardt Gmbh | Wiping and/or sealing element as well as process for sealing a piston and clamping and/or support element |
| CN201269275Y (en) * | 2008-09-29 | 2009-07-08 | 泰安泰山福神齿轮箱有限责任公司 | Brake of planet speed reducer |
| CN101956790A (en) * | 2010-05-28 | 2011-01-26 | 徐州圣邦机械有限公司 | Roller-speed reducer assembly for automobile hoist |
| CN202140555U (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Braking device of planet speed reducing machine |
-
2011
- 2011-07-20 CN CN2011102027541A patent/CN102345727A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB762232A (en) * | 1954-05-22 | 1956-11-28 | Wright Howard Clayton Ltd | A new or improved sealing ring |
| US3542380A (en) * | 1967-10-04 | 1970-11-24 | Euratom | Ring seal |
| CN2414257Y (en) * | 1999-12-21 | 2001-01-10 | 南京奥亿达液压气动技术有限公司 | Piston H-shape oil sealing device |
| US7234704B2 (en) * | 2004-02-09 | 2007-06-26 | Ludwig Ehrhardt Gmbh | Wiping and/or sealing element as well as process for sealing a piston and clamping and/or support element |
| CN201269275Y (en) * | 2008-09-29 | 2009-07-08 | 泰安泰山福神齿轮箱有限责任公司 | Brake of planet speed reducer |
| CN101956790A (en) * | 2010-05-28 | 2011-01-26 | 徐州圣邦机械有限公司 | Roller-speed reducer assembly for automobile hoist |
| CN202140555U (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Braking device of planet speed reducing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107956875A (en) * | 2017-12-13 | 2018-04-24 | 索特传动设备有限公司 | Dust blowing sealing ring and reducer brake |
| CN109611535A (en) * | 2018-12-27 | 2019-04-12 | 南京高速齿轮制造有限公司 | High pressure dynamic sealing structure suitable for gear-box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120208 |