CN201827373U - Trisection type multi-groove annular floating seal ring - Google Patents
Trisection type multi-groove annular floating seal ring Download PDFInfo
- Publication number
- CN201827373U CN201827373U CN2009201962821U CN200920196282U CN201827373U CN 201827373 U CN201827373 U CN 201827373U CN 2009201962821 U CN2009201962821 U CN 2009201962821U CN 200920196282 U CN200920196282 U CN 200920196282U CN 201827373 U CN201827373 U CN 201827373U
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- ring
- groove
- endless loop
- floating seal
- seal ring
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- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a trisection type multi-groove annular floating seal ring. The seal ring comprises an annular ring and an extension spring, wherein the annular ring adopts a trisection arc structure; a semi-annular groove is formed right in the middles of the outer peripheral walls of the arcs of the trisection arc structure, and extends along the outer circumferential wall of the annular ring to form a circle; the extension spring, of which the head and the tail are connected, is in an extended state and mounted in the semi-annular groove; the inner wall of the annual ring and a rotating shaft are in slight contact through the thrust of the spring; the cuts among the arcs adopt tangential overlap joint; each equant arc ring can freely and slightly move forward and backward in the radial direction; two to four parallel annual grooves are formed on the inner peripheral walls of the arcs at equal intervals; each annual groove extends along the inner circumferential wall of the annular ring to form a circle; a pin hole is axially formed on the end surface of the annular ring; and a positioning pin on a bearing inner wall groove can be simply inserted into the pin hole for mounting. The annular ring is made of a polyimide composite material, so that the floating seal ring is suitable for oil seal of large high-speed motor bearings.
Description
Technical field
The utility model relates to the ring-like floating seal ring of a kind of triplasy multiple-grooved, specifically, relates to a kind of floating seal ring of large high-speed machine bearing.
Background technique
The general labyrinth seal mode of floating that adopts of the oil sealing of motor bearings.Float labyrinth seal by two semicircular be that the ring of material is formed with teflon, polyimide etc., in periphery with a spring banding, seal ring and motor shaft are kept in touch, because big gap is arranged between floating seal ring and the packing holder, when motor shaft rotated or fluctuates, seal ring can be followed axle and be floated and play sealing effect.
But the large high-speed motor uses general unsteady labyrinth seal that oil sealing still takes place easily and leaks.The main cause of leaking in the high-speed electric expreess locomotive is because motor speed is higher, and disc produces mist of oil in bearing housing, and the negative pressure that mist of oil is produced by fan blade sucks the rotor inboard and causes leakage.In addition, existing two the semitight rings cut of labyrinth seal of floating are the plane, encircle up and down to have the gap between the split, and radial and axial between seal ring outer ring and the packing holder big gap are arranged all, increase the possibility of gas leakage, do not had the effect of sealing mist of oil.
Summary of the invention
Large high-speed motor speed height, the main shaft diameter is big, and the linear velocity height of oil sealing sealing contact position requires very high to sealing configuration and material wear-resistant performance.The utility model relates to the ring-like floating seal ring of triplasy multiple-grooved that a kind of large high-speed machine bearing is used, and seal ring comprises endless loop and extension spring.Endless loop becomes the trisection arc structure, have a semicircle ring groove on the position, periphery wall middle of circular arc, this groove extends a week along the outer circle wall of endless loop, the spring that a headtotail is in extended state is installed in the ring groove, and the thrust of spring makes between endless loop inwall and the rotatingshaft and slightly contacts.The spring diameter that is in extended state is less than or equal to the width of endless loop outer circle wall semicircle ring groove.Otch between the circular arc is tangential joint form, the circular arc ring of each five equilibrium can be done small moving freely in the footpath forwards, backwards, effectively compensates the wear extent in the using process, and guarantees to become the zero clearance to contact with axle all the time, circular arc ring advance amount is radial direction 0.8mm, and the yielding amount is radial direction 0.8mm.Have the parallel and equidistant ring groove of 2-4 bar on the inner circle wall of circular arc, ring groove extends a week along the inner peripheral wall of endless loop respectively, and the degree of depth of ring groove is shallow than the degree of depth of circular arc periphery wall semicircle ring groove.Axially have a pin-and-hole on the endless loop end face, the locating stud that pin-and-hole inserts on the bearing inner wall groove during installation gets final product.
Advantage of the present invention: ring structure of the present utility model is the trisection arc structure, otch between the circular arc is tangential joint form, each five equilibrium can move freely in the footpath forwards, backwards, this had both sealed tightly seal ring, compensation ability is arranged again, effectively seal the leakage way of oil droplet and mist of oil, solved the problem that the effusion of mist of oil and oil droplet flows into the rotor side.For guaranteeing working life, endless loop selects for use special composite polyimide material manufacturing to form, this kind material have good self-lubricating property, high temperature resistant, oil resistant, ageing-resistant, wear-resistant, do not damage advantages such as mill parts, be fit to the bearing oil sealing of large high-speed machine.
Description of drawings
Fig. 1 is a kind of plan structure schematic representation of the present utility model.
Fig. 2 is the generalized section of Fig. 1.
1 is the endless loop of trisection arc structure among Fig. 2, and 2 is the outer circle wall ring groove, and 3 is extension spring, and 4 is the inner peripheral wall ring groove, and 5 is pin-and-hole, and 6 is running shaft.
Embodiment
Embodiment 1: the present embodiment floating seal ring comprises endless loop and extension spring, structure as shown in Figure 1, 2, endless loop selects for use composite polyimide material to make, endless loop becomes the trisection arc structure, have a semicircle ring groove on the position, middle of circular arc periphery wall, this groove extends a week along the outer circle wall of endless loop, and a connected head-to-tail spring is installed in the ring groove, and the thrust of spring makes between endless loop inwall and the rotatingshaft and slightly contacts.The spring diameter that is in extended state equates with the width of endless loop outer circle wall semicircle ring groove.
Otch between the circular arc is tangential joint form, and the circular arc ring of each five equilibrium can be done small moving freely in the footpath forwards, backwards, effectively compensates the wear extent in the using process, and guarantees to become the zero clearance to contact with axle all the time.Circular arc ring advance amount is radial direction 0.8mm, and the yielding amount is radial direction 0.8mm.
Have 4 parallel and equidistant ring grooves on the inner circle wall of circular arc, groove extends a week along the inner peripheral wall of endless loop respectively.The degree of depth of ring groove is 2/3 of the ring-like depth of groove of circular arc periphery wall semicircle on the circular arc inner circle wall.
Axially have a pin-and-hole on the endless loop end face, the locating stud that pin-and-hole inserts on the bearing inner wall groove during installation gets final product.
Claims (8)
1. ring-like floating seal ring of triplasy multiple-grooved is characterized in that the sealing circle forms by endless loop with around the extension spring of endless loop.
2. the ring-like floating seal ring of triplasy multiple-grooved according to claim 1, it is characterized in that endless loop becomes the trisection arc structure, have a semicircle ring groove on the position, periphery wall middle of circular arc, this groove extends a week along the outer circle wall of endless loop, the spring that a headtotail is in extended state is installed in the ring groove, and the thrust of spring makes between endless loop inwall and the rotatingshaft and slightly contacts.
3. the ring-like floating seal ring of triplasy multiple-grooved according to claim 1, the spring diameter that it is characterized in that being in extended state is less than or equal to the width of endless loop outer circle wall semicircle ring groove.
4. the ring-like floating seal ring of triplasy multiple-grooved according to claim 1, it is characterized in that the otch between the three equal parts circular arc of endless loop is tangential joint form, the circular arc ring of each five equilibrium can be done small moving freely in the footpath forwards, backwards, effectively compensate the wear extent in the using process, and guarantee to become the zero clearance to contact with axle all the time, circular arc ring advance amount is radial direction 0.8mm, and the yielding amount is radial direction 0.8mm.
5. the ring-like floating seal ring of triplasy multiple-grooved according to claim 1 is characterized in that having the parallel and equidistant ring groove of 2-4 bar on the inner circle wall of circular arc, and ring groove extends a week along the inner peripheral wall of endless loop respectively.
6. the ring-like floating seal ring of triplasy multiple-grooved according to claim 1, the degree of depth that it is characterized in that ring groove on the circular arc inner circle wall is shallow than the degree of depth of circular arc periphery wall semicircle ring groove.
7. the ring-like floating seal ring of triplasy multiple-grooved according to claim 1 is characterized in that axially having a pin-and-hole on the endless loop end face, and the locating stud that pin-and-hole inserts on the bearing inner wall groove during installation gets final product.
8. the ring-like floating seal ring of triplasy multiple-grooved according to claim 1 is characterized in that the endless loop of sealing circle adopts the composite polyimide material manufacturing to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201962821U CN201827373U (en) | 2009-09-17 | 2009-09-17 | Trisection type multi-groove annular floating seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201962821U CN201827373U (en) | 2009-09-17 | 2009-09-17 | Trisection type multi-groove annular floating seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201827373U true CN201827373U (en) | 2011-05-11 |
Family
ID=43965910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201962821U Expired - Fee Related CN201827373U (en) | 2009-09-17 | 2009-09-17 | Trisection type multi-groove annular floating seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201827373U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352800A (en) * | 2011-10-26 | 2012-02-15 | 李怀志 | Piston ring with long service life |
| CN102853076A (en) * | 2012-09-14 | 2013-01-02 | 胡和萍 | Sealing ring with rotary positioning function |
| CN103470195A (en) * | 2013-10-08 | 2013-12-25 | 刘铁 | High-temperature resisting and high-pressure resisting injecting and extracting integrated double-layer hollow sucker rod |
| CN104821462A (en) * | 2015-04-17 | 2015-08-05 | 中航光电科技股份有限公司 | Sealing ring and sealing assembly and cable connector which use the sealing ring |
| CN104882716A (en) * | 2015-04-29 | 2015-09-02 | 中航光电科技股份有限公司 | Wiring terminal |
| CN110168259A (en) * | 2016-12-13 | 2019-08-23 | 伯克哈特压缩机股份公司 | Piston ring and piston compressor for piston compressor |
| CN110953346A (en) * | 2019-11-29 | 2020-04-03 | 上海好米密封科技有限公司 | Nearly complete concentric non-contact carbocycle seal structure |
-
2009
- 2009-09-17 CN CN2009201962821U patent/CN201827373U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352800A (en) * | 2011-10-26 | 2012-02-15 | 李怀志 | Piston ring with long service life |
| CN102853076A (en) * | 2012-09-14 | 2013-01-02 | 胡和萍 | Sealing ring with rotary positioning function |
| CN103470195A (en) * | 2013-10-08 | 2013-12-25 | 刘铁 | High-temperature resisting and high-pressure resisting injecting and extracting integrated double-layer hollow sucker rod |
| CN104821462A (en) * | 2015-04-17 | 2015-08-05 | 中航光电科技股份有限公司 | Sealing ring and sealing assembly and cable connector which use the sealing ring |
| CN104882716A (en) * | 2015-04-29 | 2015-09-02 | 中航光电科技股份有限公司 | Wiring terminal |
| CN104882716B (en) * | 2015-04-29 | 2017-05-31 | 中航光电科技股份有限公司 | Binding post |
| CN110168259A (en) * | 2016-12-13 | 2019-08-23 | 伯克哈特压缩机股份公司 | Piston ring and piston compressor for piston compressor |
| CN110953346A (en) * | 2019-11-29 | 2020-04-03 | 上海好米密封科技有限公司 | Nearly complete concentric non-contact carbocycle seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20130917 |