CN202140555U - Braking device of planet speed reducing machine - Google Patents
Braking device of planet speed reducing machine Download PDFInfo
- Publication number
- CN202140555U CN202140555U CN201120256071U CN201120256071U CN202140555U CN 202140555 U CN202140555 U CN 202140555U CN 201120256071 U CN201120256071 U CN 201120256071U CN 201120256071 U CN201120256071 U CN 201120256071U CN 202140555 U CN202140555 U CN 202140555U
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- China
- Prior art keywords
- braking device
- sealing
- piston
- sealing ring
- ring
- 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.)
- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 claims abstract description 24
- 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
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a braking device of a planet speed reducing machine, which belongs to the technical field of planet speed reducing machines, and comprises a braking device shell; a piston is arranged in the braking machine shell; a sealing cavity is arranged between the piston and the braking device shell; a sealing groove is arranged at the combination part of the outer circle of the piston and the inner wall of the braking device shell; a sealing ring is arranged in the sealing groove; the sealing ring is H-shaped; grooves are formed on the radial inner ring and the radial outer ring of the sealing ring; and two axial sides of the sealing ring are planes which have H-shaped sections. The beneficial effects are that the braking device has smaller frictional resistance and starting resistance as the H-shaped sealing ring is adopted; is good in sealing effect; can avoid the rolling during reciprocating motion as the section is not circular; is good in wear resisting performance; and solves the problem of oil leakage caused by insufficient radial compression amount as the existing star-shaped sealing ring is large in deformation, thus improving the sealing effect and the whole performance of the braking device.
Description
Technical field
The utility model relates to a kind of planetary speed reducer break, belongs 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 existing technology, the utility model provides a kind of planetary speed reducer break, adopts the H RunddichtringO, improves sealing effect, solves the leakage of oil problem.
The utility model is realized through following technological scheme: a kind of planetary speed reducer break, and it comprises brake casing, and piston is housed in the brake casing; Between piston and the brake casing Seal cage is arranged, seal groove is arranged, seal ring is housed in the seal groove in the junction of described outside piston and brake casing inwall; Described seal ring 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 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 the nylon back-up ring on the both sides of described seal ring.
The beneficial effect of the utility model is: 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
According to accompanying drawing and embodiment the utility model is further specified below.
Fig. 1 is the utility model structural representation.
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 utility model 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, seal groove is arranged in the junction of described piston 4 cylindricals and brake casing 1 inwall; Seal ring 3 is housed in the seal groove, and described seal ring 3 is the H RunddichtringO, and the sealing circle radially all is being manufactured with groove on the Internal and external cycle; The axial both sides of seal 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.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 speed reducer break, it comprises brake casing (1), and piston (4) is housed in the brake casing (1); Between piston (4) and the brake casing (1) Seal cage (5) is arranged, seal groove is arranged, seal ring (3) is housed in the seal groove in the junction of described piston (4) cylindrical and brake casing (1) inwall; It is characterized in that: 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.
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 |
|---|---|---|---|
| CN201120256071U CN202140555U (en) | 2011-07-20 | 2011-07-20 | Braking device of planet speed reducing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120256071U CN202140555U (en) | 2011-07-20 | 2011-07-20 | Braking device of planet speed reducing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202140555U true CN202140555U (en) | 2012-02-08 |
Family
ID=45551613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120256071U Expired - Fee Related CN202140555U (en) | 2011-07-20 | 2011-07-20 | Braking device of planet speed reducing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202140555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345727A (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Planet reductor brake |
| CN103322201A (en) * | 2013-06-18 | 2013-09-25 | 苏州市吴中区欣鑫开关配件厂 | Piston sealing device |
| CN103363142A (en) * | 2013-08-02 | 2013-10-23 | 无锡杰尔压缩机有限公司 | Star sealing device for diamond valve |
-
2011
- 2011-07-20 CN CN201120256071U patent/CN202140555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345727A (en) * | 2011-07-20 | 2012-02-08 | 徐州科源液压有限公司 | Planet reductor brake |
| CN103322201A (en) * | 2013-06-18 | 2013-09-25 | 苏州市吴中区欣鑫开关配件厂 | Piston sealing device |
| CN103363142A (en) * | 2013-08-02 | 2013-10-23 | 无锡杰尔压缩机有限公司 | Star sealing device for diamond valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XUZHOU KEYUAN HYDRAULICS CO., LTD. Free format text: FORMER NAME: XUZHOU KEYUAN HYDRAULIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Ganjiang road Copper Mt. District 221116 Jiangsu city of Xuzhou Province, No. 6 Patentee after: Xuzhou Keyuan Hydraulics Co., Ltd. Address before: Ganjiang road Copper Mt. District 221116 Jiangsu city of Xuzhou Province, No. 6 Patentee before: Xuzhou Keyuan Hydraulic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20160720 |