CN203146826U - Novel sealing device for speed-reducing top piston rod part - Google Patents
Novel sealing device for speed-reducing top piston rod part Download PDFInfo
- Publication number
- CN203146826U CN203146826U CN2013201018484U CN201320101848U CN203146826U CN 203146826 U CN203146826 U CN 203146826U CN 2013201018484 U CN2013201018484 U CN 2013201018484U CN 201320101848 U CN201320101848 U CN 201320101848U CN 203146826 U CN203146826 U CN 203146826U
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- piston rod
- sealing cover
- sealing
- seal ring
- speed
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Abstract
The utility model discloses a novel sealing device for a speed-reducing top piston rod part. At current, as the mounting of a seal ring of the sealing structure of a speed-reducing top sealing cover and a piston rod necessarily needs the processes of heating and deforming, the operation is complex and needs to be equipped with a special heating device and a special deformation recovering device, the operation time is more than two days, and great difficulty and extremely low efficiency are provided for the producing, the repairing and the replacing of the sealing part. The novel sealing device comprises the piston rod (1); the seal ring (11) is mounted between the piston rod and the sealing cover (2), the seal ring is mounted in an inner slot (5) of the sealing cover, and comprises an inner lip (6) and an outer lip (7), a cavity (9) is formed between the inner and outer lips, a gap (8) is arranged between the piston rod and the sealing cover and a pressurized work medium is filled in the gap and the cavity. The novel sealing device is used for sealing the speed-reducing top piston rod part.
Description
Technical field:
The utility model relates to a kind of deceleration top piston rod portion new type sealing device.
Background technique:
The sealing configuration of deceleration top sealing cover and piston rod is the composite structure that O type circle adds seal ring at present.It comprises: piston rod 1, sealing cover 2, O type circle 3, seal ring 4(see accompanying drawing 3), wherein O type circle and seal ring respectively are 2.This structure has following shortcoming: owing to used two kinds of obturators, manufacture cost is bigger; Each seal groove has been installed O type circle and two parts of seal ring, 2 inside grooves of sealing cover (piece number in the accompanying drawing: 5) will do enough deeply, in order to guarantee the service precision requirement, the dimension precision requirement of sealing cover inside groove is also very tight simultaneously, and this brings difficulty all for production and detection; Because must having when installing, seal ring adds the process that gentle deformation recovers, complicated operation not only, need to be equipped with the utensil that special warming-up device and deformation recover, and the time to reach more than two days, this brings quite big difficulty and quite low efficient all for productions, repairing and replacing Sealing.
Summary of the invention:
The purpose of this utility model provides a kind of deceleration top piston rod portion new type sealing device, and seal element is improved, and substitutes original structure with a kind of novel sealing structure, and guarantees not influence the performance of product.
Above-mentioned purpose realizes by following technological scheme:
A kind of deceleration top piston rod portion seal arrangement, its composition comprises: piston rod, between described piston rod and the sealing cover seal ring is installed, described seal ring is installed in the inside groove of described sealing cover, described seal ring comprises epipharynx, outer lip, have cavity between described epipharynx and the described outer lip, have the gap between described piston rod and the described sealing cover, be filled with band in described cavity, the described gap and press working medium.
Described deceleration top piston rod portion seal arrangement, described epipharynx is pressed to described piston rod, and described outer lip is pressed to the hole wall of described sealing cover inside groove.
Beneficial effect:
1. the utility model is when the work of deceleration top, and band presses working medium to enter into the cavity of seal ring by the gap between piston rod and the sealing cover, and epipharynx is pressed to piston rod, outer lip is pressed to the hole wall of sealing cover inside groove, thereby realize seal action.
2. the utility model only uses a kind of seal ring, and cost of production adds seal ring two than original O type circle
Planting Sealing reduces greatly.Inside groove size and the precision of sealing cover need adjust accordingly: the inside groove diameter changes little, and the degree of depth shoals, and its endoporus dimensional accuracy also becomes 0.2 millimeter tolerance by 0.05 millimeter original tolerance, is more conducive to produce and detected, and manufacture cost reduces, the easier assurance of quality.
3. simple to operate when the utility model assembles, and saved the utensil of special warming-up device and deformation recovery, bring great convenience and higher efficient for production, repairing and replacing Sealing.Can be applied on most of kind deceleration top.
4. seal ring of the present utility model bears working pressure and is not less than 20Mp, and when being used in northern environment low temperature resistant-40 ℃, when being used in southern environment high temperature resistant 120 ℃, simultaneously and the abnormal responses such as very useful hydraulic oil did not lose efficacy, distortion of slowing down.The utility model satisfies deceleration top sealability and keeps requirement.After using the sealing circle instead, inside groove size and the precision of sealing cover need adjust accordingly: the inside groove diameter changes little, and the degree of depth shoals, and precision also becomes 0.2 millimeter tolerance by 0.05 millimeter original tolerance, is more conducive to produce and detected.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is structural representations of seal ring in the accompanying drawing 1.
Accompanying drawing 3 is schematic representation of the sealing configuration of original deceleration top sealing cover and piston rod.
Embodiment:
Embodiment 1:
A kind of deceleration top piston rod portion seal arrangement, its composition comprises: piston rod 1, between described piston rod and the sealing cover 2 seal ring 11 is installed, described seal ring is installed in the inside groove 5 of described sealing cover, described seal ring comprises epipharynx 6, outer lip 7, have cavity 9 between described epipharynx and the described outer lip, have gap 8 between described piston rod and the described sealing cover, be filled with band in described cavity, the described gap and press working medium.
Embodiment 2:
According to embodiment's 1 described deceleration top piston rod portion seal arrangement, described epipharynx is pressed to described piston rod, and described outer lip is pressed to the hole wall 10 of described sealing cover inside groove.
Claims (2)
1. deceleration top piston rod portion seal arrangement, its composition comprises: piston rod, it is characterized in that: between described piston rod and the sealing cover seal ring is installed, described seal ring is installed in the inside groove of described sealing cover, described seal ring comprises epipharynx, outer lip, have cavity between described epipharynx and the described outer lip, have the gap between described piston rod and the described sealing cover, be filled with band in described cavity, the described gap and press working medium.
2. deceleration according to claim 1 top piston rod portion seal arrangement, it is characterized in that: described epipharynx is pressed to described piston rod, and described outer lip is pressed to the hole wall of described sealing cover inside groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201018484U CN203146826U (en) | 2013-03-06 | 2013-03-06 | Novel sealing device for speed-reducing top piston rod part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201018484U CN203146826U (en) | 2013-03-06 | 2013-03-06 | Novel sealing device for speed-reducing top piston rod part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146826U true CN203146826U (en) | 2013-08-21 |
Family
ID=48974350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201018484U Expired - Fee Related CN203146826U (en) | 2013-03-06 | 2013-03-06 | Novel sealing device for speed-reducing top piston rod part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353083A (en) * | 2016-09-30 | 2017-01-25 | 哈尔滨东安实业发展有限公司 | Automatic transmission piston simulation experiment device |
| CN108291641A (en) * | 2015-11-30 | 2018-07-17 | 伯克哈特压缩机股份公司 | The method of dry operating piston rod seal pack and the dry operating piston rod seal pack of operation |
-
2013
- 2013-03-06 CN CN2013201018484U patent/CN203146826U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108291641A (en) * | 2015-11-30 | 2018-07-17 | 伯克哈特压缩机股份公司 | The method of dry operating piston rod seal pack and the dry operating piston rod seal pack of operation |
| CN108291641B (en) * | 2015-11-30 | 2019-05-10 | 伯克哈特压缩机股份公司 | The method of dry operating piston rod seal pack and the dry operating piston rod seal pack of operation |
| CN106353083A (en) * | 2016-09-30 | 2017-01-25 | 哈尔滨东安实业发展有限公司 | Automatic transmission piston simulation experiment device |
| CN106353083B (en) * | 2016-09-30 | 2018-08-14 | 哈尔滨东安实业发展有限公司 | A kind of automatic transmission piston nature imitation experiment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20170306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |