CN103363119B - A kind of hydrodynamic retarder seal arrangement - Google Patents
A kind of hydrodynamic retarder seal arrangement Download PDFInfo
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- CN103363119B CN103363119B CN201310255118.4A CN201310255118A CN103363119B CN 103363119 B CN103363119 B CN 103363119B CN 201310255118 A CN201310255118 A CN 201310255118A CN 103363119 B CN103363119 B CN 103363119B
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- oil sealing
- active chamber
- ring
- pressure
- hydrodynamic retarder
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- 238000007789 sealing Methods 0.000 claims abstract description 61
- 239000002184 metal Substances 0.000 claims abstract description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 57
- 239000010720 hydraulic oil Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 239000006071 cream Substances 0.000 description 4
- 238000007373 indentation Methods 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The invention provides a kind of hydrodynamic retarder seal arrangement; it comprises axle and active chamber wall; the outside of described axle and active chamber wall joint is provided with oil sealing; also pressure-reducing ring is provided with between described axle and active chamber wall; the outside of described oil sealing is provided with oil sealing guard ring; described oil sealing guard ring is a metal annular gasket, and the one side that described oil sealing guard ring againsts oil sealing is provided with the annular protrusion for propping up oil seal lip.This hydrodynamic retarder seal arrangement is adopted to improve sealing effect.
Description
Technical field:
The present invention relates to auto parts machinery field, is specifically a kind of hydrodynamic retarder seal arrangement for sealing between rotor shaft and hydrodynamic retarder active chamber.
Background technique:
Hydrodynamic retarder is also known as fluid power speed reducer.Automobile uses exhaust brake when lower long slope, although can receive good braking effect, for the heavy vehicle that tonnage is larger, as commercial vehicle and military vehicle, adopts exhaust brake effect to be limited.Even in climb and fall section, mountain area, heavy-duty vehicle brake usefulness can be caused lower because of frequent braking, even cause the generation of traffic accident.Therefore, the heavy vehicle such as cargo truck, military vehicle all needs to install fluid power deceleration retarder.
Hydrodynamic retarder is the principle adopting fluid power, it comprises active chamber, shoe cream room and cooler, a pair stators and rotators is sealed in active chamber, rotor and automobile power axle link, rotor and stator are equipped with blade, active chamber is communicated with shoe cream room, when needs are braked, control gear provides signal, in shoe cream room, pressurized air is filled with by solenoid valve, hydraulic oil in shoe cream room flows into active chamber, rotor banding hydrodynamic force feed is moved along direction blade, and get rid of to stator, stator vane produces reaction to hydraulic oil, hydraulic oil outflow stator turns over impact rotor again, material is thus formed the resisting moment to rotor, hinder rotor turns, thus the decelerating effect realized vehicle.
This hydrodynamic retarder rotor shaft will be connected with automobile power axle through active chamber, for preventing hydraulic fluid leak, therefore in the joint of rotor shaft and active chamber, oil sealing to be set to prevent hydraulic fluid leak, but oil sealing bear limited pressure, sometimes still have a small amount of oil to leak, and bear limited pressure due to oil sealing, when therefore working, the pressure of hydraulic oil can not design excessive, otherwise easily damage, sealing effect is poor.
Summary of the invention:
The technical problem that the present invention solves overcomes existing technological deficiency, provides a kind of hydrodynamic retarder seal arrangement that can improve sealing effect.
Technological scheme provided by the invention is: the invention provides a kind of hydrodynamic retarder seal arrangement; it comprises axle and active chamber wall; the outside of described axle and active chamber wall joint is provided with oil sealing; also pressure-reducing ring is provided with between described axle and active chamber wall; the outside of described oil sealing is provided with oil sealing guard ring; described oil sealing guard ring is a metal annular gasket, and the one side that described oil sealing guard ring againsts oil sealing is provided with the annular protrusion for propping up oil seal lip.
Described pressure-reducing ring is a ring washer, on described packing ring, a place disconnects formation one breach, the two ends of described disconnection, and wherein the end face of one end establishes a rectangular recess, the end face of the other end is provided with the rectangular preiection with this fit depressions, and the width of described rectangular recess is equal with the width of described rectangular preiection.Adopt this pressure-reducing ring, breach on pressure-reducing ring is set to the form of a rectangular preiection and a rectangular recess cooperation, protruding both sides and two walls of groove are fitted, like this, even if pressure-reducing ring in use weares and teares, breach spreading becomes large, protruding still some is fitted with two inwalls of groove, and oil still can be stoped to flow to low voltage side from high pressure side, and effect of easing stress is better, can not be deteriorated along with wearing and tearing, the life-span is longer.
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 if pressure-reducing ring wearing and tearing too much, breach becomes large, but still fits with two inwalls of groove in the both sides of projection, and on high-tension side oil so still can be stoped to flow out from indentation, there, and effect of easing stress is better.
The present invention has the following advantages:
The present invention is adopted to establish pressure-reducing ring between axle and active chamber wall, space between oil sealing and active chamber wall is low pressure area, active chamber is zone of high pressure, if pressure-reducing ring can stop the high pressure liquid force feed in active chamber to flow between oil sealing and active chamber wall, thus make the oil pressure in the space between oil sealing and active chamber wall lower, make oil sealing need not bear larger oil pressure, but also set up an oil sealing guard ring in the outside of oil sealing, be close to outside oil sealing, and oil sealing guard ring is also provided with the lip that convex annular gets up to prop up oil sealing, prevent from oil pressure from crossing ambassador's lip to open, add the voltage endurance capability of oil sealing, and oil sealing is not easy to damage.Thus substantially increase the sealability of hydrodynamic retarder seal arrangement.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of a kind of hydrodynamic retarder seal arrangement of the present invention;
Accompanying drawing 2 is the A place enlarged diagram in Fig. 1;
Accompanying drawing 3 is the structural representation of pressure-reducing ring;
Accompanying drawing 4 is the cross-sectional schematic of pressure-reducing ring;
As shown in the figure: 1, axle, 2, active chamber, 3, active chamber wall, 4 pressure-reducing rings, 4.1, breach, 4.2, rectangular recess, 4.3, rectangular preiection, 5, oil sealing guard ring, 5.1, annular protrusion, 6, oil sealing, 7, skeleton, 8, low pressure area.
Embodiment:
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated:
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4: the invention provides a kind of hydrodynamic retarder seal arrangement, it comprises axle 1 and active chamber wall 3, described axle 1 is provided with oil sealing 6 with the outside of active chamber wall 3 joint, space between described oil sealing 6 and active chamber wall 3 is low pressure area 8, it is active chamber 2 inside active chamber 3, active chamber 2 is operationally zone of high pressure, pressure-reducing ring 4 is also provided with between described axle 1 and active chamber wall 3, hydraulic oil can be stoped to flow to low pressure area from zone of high pressure, thus make low pressure area oil pressure lower, oil sealing 6 bears pressure also can be lower, but obtain larger raising to make the resisting moment of hydrodynamic retarder itself, therefore in active chamber, oil pressure can be very high, even if therefore low pressure area oil pressure is lower, also the tolerance range of oil sealing 6 may be exceeded, therefore also exist, the outside of oil sealing 6 is provided with oil sealing guard ring 5 to protect oil sealing 6, described oil sealing guard ring 5 is a metal annular gasket, the one side that described oil sealing guard ring 5 againsts oil sealing 6 is provided with the annular protrusion 5.1 for propping up oil sealing 6 lip.The inside of described oil sealing 6 is also provided with endless metal skeleton 7 to strengthen the intensity of oil sealing 6.Due to can the sealability of hydrodynamic retarder seal arrangement greatly, the oil pressure therefore in active chamber can design higher, thus mentions the resisting moment of hydrodynamic retarder, improves braking effect during hydrodynamic retarder brake.
Described annular protrusion 5.1 is perpendicular to the plane at oil sealing guard ring 5 place.
Acting as of described pressure-reducing ring 4 stops hydraulic oil to flow to low pressure area 8 from active chamber (zone of high pressure) 2, and the structure such as pad, packing ring therefore can be adopted to block the gap between axle 1 and active chamber wall 3.
Described pressure-reducing ring 4 is a ring washer 4, on described packing ring 4, a place disconnects formation one breach 4.1, the two ends of described disconnection, wherein the end face of one end establishes a rectangular recess 4.2, the end face of the other end is provided with the rectangular preiection 4.3 matched with this groove 4.2, and the width of described rectangular recess 4.2 is equal with the width of described rectangular preiection 4.3.Adopt this pressure-reducing ring, breach on pressure-reducing ring is set to the form of a rectangular preiection and a rectangular recess cooperation, protruding both sides and two walls of groove are fitted, like this, even if pressure-reducing ring in use weares and teares, breach spreading becomes large, protruding still some is fitted with two inwalls of groove, and oil still can be stoped to flow to low voltage side from high pressure side, and effect of easing stress is better, can not be deteriorated along with wearing and tearing, the life-span is longer.
The dimension scale of the length of described rectangular preiection 4.3 and the thickness of packing ring 4 is 2:1 ~ 5:1.Adopt this structure, even if pressure-reducing ring wearing and tearing too much, breach becomes large, but still fits with two inwalls of groove in the both sides of projection, and on high-tension side oil so still can be stoped to flow out from indentation, there, and effect of easing stress is better.
Adopt the present invention outside oil sealing, set up an oil sealing guard ring; be close to outside oil sealing, and oil sealing guard ring be also provided with the lip that convex annular gets up to prop up oil sealing, prevent oil pressure from crossing ambassador's lip and open; add the anti-pressure ability of oil sealing, and oil sealing is not easy to damage.
Claims (3)
1. a hydrodynamic retarder seal arrangement, it comprises axle (1) and active chamber wall (3), described axle (1) is provided with oil sealing (6) with the outside of active chamber wall (3) joint, it is characterized in that: between described axle (1) and active chamber wall (3), be also provided with pressure-reducing ring (4), the outside of described oil sealing (6) is provided with oil sealing guard ring (5), described oil sealing guard ring (5) is a metal annular gasket, the one side that described oil sealing guard ring (5) againsts oil sealing (6) is provided with the annular protrusion (5.1) for propping up oil sealing (6) lip, the inside of described oil sealing (6) is also provided with endless metal skeleton (7).
2. a kind of hydrodynamic retarder seal arrangement according to claim 1, it is characterized in that: described pressure-reducing ring (4) is a ring washer, on described ring washer, a place disconnects formation one breach (4.1), in the two ends that ring washer disconnects, the end face of one end establishes a rectangular recess (4.2), the end face of the other end is provided with the rectangular preiection (4.3) matched with this rectangular recess (4.2), and the width of described rectangular recess (4.2) is equal with the width of described rectangular preiection (4.3).
3. a kind of hydrodynamic retarder seal arrangement according to claim 2, is characterized in that: the dimension scale of the length of described rectangular preiection (4.3) and the thickness of ring washer is 2:1 ~ 5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255118.4A CN103363119B (en) | 2013-06-24 | 2013-06-24 | A kind of hydrodynamic retarder seal arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310255118.4A CN103363119B (en) | 2013-06-24 | 2013-06-24 | A kind of hydrodynamic retarder seal arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363119A CN103363119A (en) | 2013-10-23 |
| CN103363119B true CN103363119B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310255118.4A Active CN103363119B (en) | 2013-06-24 | 2013-06-24 | A kind of hydrodynamic retarder seal arrangement |
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| Country | Link |
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| CN (1) | CN103363119B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704564B (en) * | 2022-03-31 | 2024-06-14 | 贵阳丽天苍泰科技有限公司 | Hydraulic retarder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3330386A (en) * | 1966-03-21 | 1967-07-11 | Caterpillar Tractor Co | Sealing arrangement for retarder system |
| CN1699799A (en) * | 2004-05-21 | 2005-11-23 | 张绍翔 | Spigot type piston packing ring |
| CN200955498Y (en) * | 2006-10-18 | 2007-10-03 | 阜新北鑫星液压有限公司 | Shaft-end sealing device of middle-high-pressure gear oil pump and motor |
| CN201034129Y (en) * | 2007-05-18 | 2008-03-12 | 深圳市特尔佳科技股份有限公司 | Hydraulic speed damper |
| CN102303300A (en) * | 2011-07-29 | 2012-01-04 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN103089863A (en) * | 2013-01-25 | 2013-05-08 | 中国矿业大学 | Radial extrusion type magnetorheological fluid brake |
| CN203548915U (en) * | 2013-06-24 | 2014-04-16 | 宁波华盛汽车部件有限公司 | Sealing device for hydraulic retarder |
-
2013
- 2013-06-24 CN CN201310255118.4A patent/CN103363119B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3330386A (en) * | 1966-03-21 | 1967-07-11 | Caterpillar Tractor Co | Sealing arrangement for retarder system |
| CN1699799A (en) * | 2004-05-21 | 2005-11-23 | 张绍翔 | Spigot type piston packing ring |
| CN200955498Y (en) * | 2006-10-18 | 2007-10-03 | 阜新北鑫星液压有限公司 | Shaft-end sealing device of middle-high-pressure gear oil pump and motor |
| CN201034129Y (en) * | 2007-05-18 | 2008-03-12 | 深圳市特尔佳科技股份有限公司 | Hydraulic speed damper |
| CN102303300A (en) * | 2011-07-29 | 2012-01-04 | 深圳市特尔佳科技股份有限公司 | Hydraulic retarder installation tool and installation method thereof |
| CN103089863A (en) * | 2013-01-25 | 2013-05-08 | 中国矿业大学 | Radial extrusion type magnetorheological fluid brake |
| CN203548915U (en) * | 2013-06-24 | 2014-04-16 | 宁波华盛汽车部件有限公司 | Sealing device for hydraulic retarder |
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| Publication number | Publication date |
|---|---|
| CN103363119A (en) | 2013-10-23 |
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Effective date of registration: 20240114 Address after: 315000 Science and Technology Park, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province (from Xiashi Village to Shanghe Village) Patentee after: NINGBO HUASHENG UNITED BRAKE TECHNOLOGY Co.,Ltd. Address before: 315191 Science and Technology Park in Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province (Xiashi Village, Shanghe Village) Patentee before: NINGBO HUASHENG AUTOMOBILE PARTS Co.,Ltd. |