CN203283216U - Pressure reduction sealing ring - Google Patents
Pressure reduction sealing ring Download PDFInfo
- Publication number
- CN203283216U CN203283216U CN2013203667037U CN201320366703U CN203283216U CN 203283216 U CN203283216 U CN 203283216U CN 2013203667037 U CN2013203667037 U CN 2013203667037U CN 201320366703 U CN201320366703 U CN 201320366703U CN 203283216 U CN203283216 U CN 203283216U
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- CN
- China
- Prior art keywords
- sealing ring
- pressure reduction
- reduced pressure
- groove
- pressure sealing
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- Expired - Lifetime
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Abstract
The utility model provides a pressure reduction sealing ring. The pressure reduction sealing ring is an annular gasket, one position of the gasket is broken to form a gap, a rectangular groove is formed in the end face of one broken end, a rectangular protrusion matched with the groove is arranged on the end face of the other broken end, and the width of the rectangular groove is equal to that of the rectangular protrusion. Through the structure, even the pressure reduction sealing ring is abraded in the using process and the gap is expanded and enlarged, one part of the protrusion is still attached to the two inner walls of the groove, oil is still prevented from flowing to a low-pressure side from a high-pressure side, the pressure reduction effect is good and cannot become poor along with abrasion, and the service life of the pressure reduction sealing ring is long.
Description
Technical field:
The utility model relates to the vehicular spare parts field, is specifically the reduced pressure sealing ring on a kind of hydrodynamic retarder.
Background technology:
Hydrodynamic retarder claims again the fluid power speed reduction gearing.Automobile uses energy brake when lower long slope, although can receive good braking effect, for the larger heavy-duty vehicle of tonnage, as commercial vehicle and military vehicle, it is limited adopting the energy brake effect.Even, in uphill/downhill highway section, mountain area, can cause heavy-duty vehicle drg brake efficiency lower because of frequent braking, even cause the generation of traffic accident.Therefore, the heavy-duty vehicle such as cargo truck, military vehicle all needs to install fluid power deceleration retarder.
Because the oil pressure in the hydrodynamic retarder of heavy-duty vehicle is higher; therefore the bearing capacity of sealing member is had relatively high expectations; therefore the reduced pressure sealing ring generally also is housed between sealing member and oil pocket; the reduced pressure sealing ring set is on axle and be close to the oil pocket wall; be used for stoping the side of hydraulic oil from an effluent of high pressure to low pressure in oil pocket, thereby make the oil pressure of low pressure side lower, play the effect of decompression; make the oil pressure on the sealing member that is contained in low pressure side lower, play the effect of protection sealing member.the size of the internal diameter of reduced pressure sealing ring operated by rotary motion and the size of the external diameter of axle equate or are slightly less than the size of the external diameter of axle, therefore for the reduced pressure sealing ring set on axle, can cut at the place on the reduced pressure sealing ring, be generally the hypotenuse otch in prior art, while installing like this, just the reduced pressure sealing central shoring is opened and is enclosed within on axle, put afterwards due to elasticity, the otch of reduced pressure sealing ring also can be closed, prevent that hydraulic oil from oozing out, but can wear and tear the reduced pressure sealing ring due to axle when rotating, reduced pressure sealing ring otch after wearing and tearing can become larger and larger, can cause so on high-tension side oil outwards to flow out from incision, flow to low pressure side, the oil pressure of low pressure side also can slowly raise like this, effect of easing stress is poor.
The utility model content:
The technical matters that the utility model solves is, overcomes existing technological deficiency, and a kind of oozing out of oil of reducing is provided, and effect of easing stress is the reduced pressure sealing ring preferably.
The technical scheme that the utility model provides is: the utility model provides a kind of reduced pressure sealing ring, it is a ring washer, on described packing ring, a place disconnects and forms a breach, the two ends of described disconnection, wherein the end face of an end is established a rectangular recess, the end face of the other end is provided with the rectangular preiection that matches with this groove, and the width of described rectangular recess equates with the width of described rectangular preiection.
The dimension scale of the length of described rectangular preiection and the thickness of packing ring is 2:1～5:1.Adopt this structure, even the wearing and tearing of reduced pressure sealing ring are too much, it is large that breach becomes, and still still fit with two inwalls of groove in the both sides of projection, so still can stop on high-tension side oil to flow out from indentation, there, and effect of easing stress is better.
The utlity model has following advantage:
Adopt the utility model reduced pressure sealing ring, breach on the reduced pressure sealing ring is made as a rectangular preiection and the form that rectangular recess coordinates, two wall laminatings of the both sides of projection and groove, like this, even the reduced pressure sealing ring in use weares and teares, it is large that the breach spreading becomes, still some is to fit with two inwalls of groove to projection, still can stop oil to flow to low pressure side from high pressure side, and effect of easing stress is better, can be along with wearing and tearing variation, the life-span is longer.
Description of drawings:
Accompanying drawing 1 is the structural representation of facing of the utility model reduced pressure sealing ring;
Accompanying drawing 2 is the side-looking enlarged diagram of the utility model reduced pressure sealing ring indentation, there;
Accompanying drawing 3 is the use view of the utility model reduced pressure sealing ring.
As shown in the figure: 1, packing ring, 2, breach, 3, groove, 4, projection.5, oil pocket wall, 6, axle.
The specific embodiment:
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
As shown in Figure 1, Figure 2, Figure 3 shows: the utility model provides a kind of reduced pressure sealing ring, it is a ring washer 1, on described packing ring 1, a place disconnects and forms a breach 2, the two ends of described disconnection, wherein the end face of an end is established a rectangular recess 3, described groove 3 is located at the center of this end face, and the end face of the other end is provided with the rectangular preiection 4 that matches with this groove 3.Described protruding 4 also are located at the center of this end face.The width of described rectangular recess 3 equates with the width of described rectangular preiection 3.Namely can fit with two inwalls of groove 3 in the both sides of projection 3.
In Fig. 1, for indication notch, shown in figure, indentation, there has gap, but under state of nature, indentation, there is closed.
The dimension scale of the thickness of the length of described rectangular preiection 4 and packing ring 1 is 2:1～5:1.Adopt this structure, even the wearing and tearing of reduced pressure sealing ring are too much, it is large that breach becomes, and still still fit with two inwalls of groove in the both sides of projection, so still can stop on high-tension side oil to flow out from indentation, there, and effect of easing stress is better.
The utility model reduced pressure sealing ring, breach on the reduced pressure sealing ring is made as a rectangular preiection and the form that rectangular recess coordinates, two wall laminatings of the both sides of projection and groove, like this, even the reduced pressure sealing ring in use weares and teares, it is large that the breach spreading becomes, still some is to fit with two inwalls of groove to projection, still can stop oil to flow to low pressure side from high pressure side, and effect of easing stress is better, can be along with wearing and tearing variation, the life-span is longer.
Claims (2)
1. reduced pressure sealing ring, it is a ring washer (1), the upper place of described packing ring (1) disconnects and forms a breach (2), it is characterized in that: the two ends of described disconnection, wherein the end face of an end is established a rectangular recess (3), the end face of the other end is provided with the rectangular preiection (4) that matches with this groove (3), and the width of described rectangular recess (3) equates with the width of described rectangular preiection (3).
2. reduced pressure sealing ring according to claim 1, it is characterized in that: the dimension scale of the thickness of the length of described rectangular preiection (4) and packing ring (1) is 2:1～5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203667037U CN203283216U (en) | 2013-06-24 | 2013-06-24 | Pressure reduction sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203667037U CN203283216U (en) | 2013-06-24 | 2013-06-24 | Pressure reduction sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203283216U true CN203283216U (en) | 2013-11-13 |
Family
ID=49539590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203667037U Expired - Lifetime CN203283216U (en) | 2013-06-24 | 2013-06-24 | Pressure reduction sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203283216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139908A (en) * | 2017-06-16 | 2019-01-04 | 博西华电器（江苏）有限公司 | Seal assembly suitable for household electrical appliance and the household electrical appliance with the seal assembly |
| CN110454357A (en) * | 2019-09-18 | 2019-11-15 | 张家港瑞景动力科技有限公司 | A kind of low-temperature end piston of cryogenic pump |
-
2013
- 2013-06-24 CN CN2013203667037U patent/CN203283216U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139908A (en) * | 2017-06-16 | 2019-01-04 | 博西华电器（江苏）有限公司 | Seal assembly suitable for household electrical appliance and the household electrical appliance with the seal assembly |
| CN110454357A (en) * | 2019-09-18 | 2019-11-15 | 张家港瑞景动力科技有限公司 | A kind of low-temperature end piston of cryogenic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |
|
| CX01 | Expiry of patent term |