CN204327986U - Air-resistance type axle class sealing configuration - Google Patents
Air-resistance type axle class sealing configuration Download PDFInfo
- Publication number
- CN204327986U CN204327986U CN201520051688.6U CN201520051688U CN204327986U CN 204327986 U CN204327986 U CN 204327986U CN 201520051688 U CN201520051688 U CN 201520051688U CN 204327986 U CN204327986 U CN 204327986U
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- axis
- bore
- afterbody
- air
- resistance type
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a kind of air-resistance type axle class sealing configuration, comprise axis, bearing flange, oil sealing, source of the gas and end cap, source of the gas is positioned at outside casing and is connected with axis by gas piping, end cap is arranged on axis, with axis and forms Spielpassung, end cap is provided with diffusion formula shrinkage hole, and the axle center of axis is provided with vent, and the side of axis is provided with annular groove, annular groove is positioned at diffusion formula shrinkage hole, axis is provided with the pore running through vent and annular groove; Diffusion formula shrinkage hole comprises front portion, middle part and afterbody, the axial cross section shape of anterior, middle part and afterbody is followed successively by rectangle, trapezoidal and rectangle, anterior bore is less than the bore of afterbody, middle part tail end bore is equal with afterbody front end bore, front end, middle part bore is equal with anterior tail end bore, middle part tail end diminishes gradually to the direction of front end, middle part, and the side of diffusion formula shrinkage hole and axis forms a space jointly.The mode that the utility model utilizes tonifying Qi supercharging and oil sealing to match realizes the sealing of axle.
Description
Technical field
The utility model belongs to axle class underwater sealing structure, particularly relates to a kind of air-resistance type axle class sealing configuration utilizing tonifying Qi supercharging and oil sealing to match.
Background technique
For underwater installation, the sealing of running shaft class is necessary, usually just adopts oil seal structure to seal output shaft end.Because oil sealing is direct and contact with sea water, often can be wound around by external fine strip shape foreign matter and destroys oil sealing sealing face; In addition, the friction poor heat radiation between oil sealing and rotating shaft surface, easily causes oil sealing aging.Also the employing had adds that outside oil sealing an end cap makes seawater directly not contact with oil sealing, but the endoporus of end cap is larger, the space between end cap and running shaft is needed to add the isolation of seal ring guarantee seawater and oil sealing, because seal ring is easily aging under the erosion of seawater and the dual situation of frictional heat, after seal ring is aging, seawater directly contacts with oil sealing, and the method has just delayed the ageing time of oil sealing to a certain extent, does not fundamentally solve the aging problem of oil sealing.
Summary of the invention
For solving the problem, the utility model discloses a kind of air-resistance type axle class sealing configuration, the mode utilizing tonifying Qi supercharging and oil sealing to match realizes the sealing of axle.
A kind of air-resistance type axle class sealing configuration, comprise axis, one end of described axis is positioned at casing, the other end runs through casing and stretches out outside casing, bearing flange and oil sealing is provided with outside axis, also comprise source of the gas and end cap, described source of the gas is positioned at outside casing and is connected with axis by gas piping, described end-cover axle is to being arranged on axis, Spielpassung is formed with axis, described end cap is fixedly connected on outside bearing flange, the axle center of end cap is provided with diffusion formula shrinkage hole, the axle center of described axis is provided with vent, the side of described axis is provided with annular groove, described annular groove is positioned at diffusion formula shrinkage hole, the Vertical direction in described axis axle center is provided with pore, described pore runs through vent and annular groove, described diffusion formula shrinkage hole comprises front portion, middle part and afterbody, described front portion, middle part and afterbody are positioned on same axle center, the axial cross section shape of described front portion, middle part and afterbody is followed successively by rectangle, trapezoidal and rectangle, anterior bore is less than the bore of afterbody, described middle part tail end bore is equal with afterbody front end bore, front end, described middle part bore is equal with anterior tail end bore, middle part tail end diminishes gradually to the direction of front end, middle part, and the side of the front portion of described diffusion formula shrinkage hole, middle part, afterbody and axis forms the space that is held gas jointly.
As further improvement of the utility model, the center of described annular groove is consistent with the axle center of axis.
As further improvement of the utility model, the axle center of described pore and the axis perpendicular of axis.
As further improvement of the utility model, the quantity of described pore is 6.
As further improvement of the utility model, the diameter of described annular groove is 0.95 with the diameter ratio of axis.
As further improvement of the utility model, the axle center of described trapezoidal waist and axis forms angle, and described angle angle is 11.5 ° ~ 16.1 °.
As further improvement of the utility model, the gap width between the front portion of described diffusion formula shrinkage hole and axis is 0.4 ~ 0.6mm.
As further improvement of the utility model, the gap width of anterior length >=10 of described diffusion formula shrinkage hole times.
As further improvement of the utility model, between described source of the gas and axis, be also connected with pneumatic triple piece.
Compared with prior art, the utility model tool has the following advantages and beneficial effect: the mode utilizing source of the gas tonifying Qi, from the air of one end input certain pressure of axle, oil sealing end cap is added in the outside of oil sealing, diffusion formula shrinkage hole is established in end cap, pressed gas is evenly exported along the annulus between diffusion formula shrinkage hole and axis after this assembles, take away the frictional heat of oil sealing and shaft part, seawater is stoped to invade, to change oil sealing one side be oil one side is the predicament of water, and effectively can stop that the winding of foreign matter invades, protect oil sealing preferably, substantially prolongs the working life of oil sealing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is A-A cross section view in Fig. 1, shows middle Axial and radial pore position and structure.
Fig. 3 is the enlarged view of I part in Fig. 1.
Fig. 4 is the enlarged view of II part in Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, following embodiment should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometrical center respectively.
As shown in the figure, a kind of air-resistance type axle class sealing configuration, comprise axis 4, source of the gas 1 and end cap 7, one end of axis 4 is positioned at casing 3, the other end runs through casing 3 and stretches out outside casing, bearing flange 5 and oil sealing 6 is provided with outside axis 4, axis 4 is sealed in casing 3 by bearing flange 5 and oil sealing 6, source of the gas 1 is positioned at outside casing 3, and source of the gas 1 is connected with axis 4 by gas piping, end cap 7 is axially arranged on axis 4, and end cap 7 two ends are bolted on outside bearing flange 5, form Spielpassung between end cap 7 and axis.On the axle center of end cap 7, be provided with diffusion formula shrinkage hole 8 in the present embodiment, diffusion formula shrinkage hole 8 runs through end cap 7 main body.The axle center of axis 4 is provided with vent 9, and the side of axis 4 is provided with annular groove 10, and the diameter of the present embodiment annular recess 10 is set to D
2, the diameter of axis 4 is set to D
1, D
2/ D
1=0.95.The center of annular groove 10 is consistent with the axle center of axis 4, when after end cap 7 installation, the position of annular groove 10 is in diffusion formula shrinkage hole 8, the Vertical direction in axis 4 axle center is provided with 6 pores 11, the axle center of pore 11 and the axis perpendicular of axis 4,6 pores 11 are distributed in annular groove 10 around the axle center annular of axis, and radially, pore 11 runs through vent 9 and annular groove 10.
Diffusion formula shrinkage hole 8 to comprise in anterior 81(the present embodiment with the outer direction away from end cap of casing for front portion), middle part 82 and afterbody 83, front portion 81, middle part 82 and afterbody 83 are positioned on same axle center, the axial cross section shape of anterior 81, middle part 82 and afterbody 83 is followed successively by rectangle, trapezoidal and rectangle, the axle center of this trapezoidal waist and axis forms angle (being set to α), and α is 11.5 ° ~ 16.1 °.
The bore of anterior 81 is less than the bore of afterbody 83, middle part 82 tail end bores are equal with afterbody 83 front end bore, middle part 82 front end bores are equal with anterior 81 tail end bores, middle part 82 tail ends diminish gradually to the direction of front end, middle part 82, form a frustoconic shape hole that middle part tail end is large, front end is little, have gap between the front portion of diffusion formula shrinkage hole 8 and axis, gap width is set to β, and β is 0.4 ~ 0.6mm; The anterior length of diffusion formula shrinkage hole 8 is set to δ, δ >=10 β.The side of the front portion 81 of diffusion formula shrinkage hole 8, middle part 82, afterbody 83 and axis 4 forms the space that is held gas jointly.
Gas out enters the vent 9 axis 4 axle center by gas piping afterwards from source of the gas 1, then the annular groove 10 of axis side is entered via radial 6 pores 11 of radial direction, finally assemble in the holding space that the side of diffusion formula shrinkage hole 8 and axis 4 is formed, then evenly export along the annulus between diffusion formula shrinkage hole 8 and axis 4, take away the frictional heat of oil sealing and shaft part, seawater is stoped to invade, to change oil sealing one side be oil one side is the predicament of water, and effectively can stop that the winding of foreign matter invades, protect oil sealing preferably, substantially prolongs the working life of oil sealing.In order to better protect the life-span of oil sealing, between source of the gas 1 and axis 4, being also connected with pneumatic triple piece 2, filtering out the impurity in gas, avoid the working life affecting oil sealing due to the unclean of gas.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned technological means, also comprises the technological scheme be made up of above technical characteristics combination in any.
Claims (9)
1. an air-resistance type axle class sealing configuration, comprise axis, one end of described axis is positioned at casing, the other end runs through casing and stretches out outside casing, bearing flange and oil sealing is provided with outside axis, it is characterized in that: also comprise source of the gas and end cap, described source of the gas is positioned at outside casing and is connected with axis by gas piping, described end-cover axle is to being arranged on axis, Spielpassung is formed with axis, described end cap is fixedly connected on outside bearing flange, the axle center of end cap is provided with diffusion formula shrinkage hole, the axle center of described axis is provided with vent, the side of described axis is provided with annular groove, described annular groove is positioned at diffusion formula shrinkage hole, the Vertical direction in described axis axle center is provided with pore, described pore runs through vent and annular groove, described diffusion formula shrinkage hole comprises front portion, middle part and afterbody, described front portion, middle part and afterbody are positioned on same axle center, the axial cross section shape of described front portion, middle part and afterbody is followed successively by rectangle, trapezoidal and rectangle, anterior bore is less than the bore of afterbody, described middle part tail end bore is equal with afterbody front end bore, front end, described middle part bore is equal with anterior tail end bore, middle part tail end diminishes gradually to the direction of front end, middle part, and the side of the front portion of described diffusion formula shrinkage hole, middle part, afterbody and axis forms the space that is held gas jointly.
2. air-resistance type axle class sealing configuration according to claim 1, is characterized in that: the center of described annular groove is consistent with the axle center of axis.
3. air-resistance type axle class sealing configuration according to claim 1, is characterized in that: the axle center of described pore and the axis perpendicular of axis.
4. air-resistance type axle class sealing configuration according to claim 1, is characterized in that: the quantity of described pore is 6.
5. air-resistance type axle class sealing configuration according to claim 2, is characterized in that: the diameter of described annular groove is 0.95 with the diameter ratio of axis.
6. air-resistance type axle class sealing configuration according to claim 1, is characterized in that: the axle center of described trapezoidal waist and axis forms angle, and described angle angle is 11.5 ° ~ 16.1 °.
7. air-resistance type axle class sealing configuration according to claim 1, is characterized in that: the gap width between the front portion of described diffusion formula shrinkage hole and axis is 0.4 ~ 0.6mm.
8. air-resistance type axle class sealing configuration according to claim 7, is characterized in that: the gap width of anterior length >=10 of described diffusion formula shrinkage hole times.
9. air-resistance type axle class sealing configuration according to claim 1, is characterized in that: be also connected with pneumatic triple piece between described source of the gas and axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051688.6U CN204327986U (en) | 2015-01-26 | 2015-01-26 | Air-resistance type axle class sealing configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520051688.6U CN204327986U (en) | 2015-01-26 | 2015-01-26 | Air-resistance type axle class sealing configuration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327986U true CN204327986U (en) | 2015-05-13 |
Family
ID=53164347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520051688.6U Expired - Fee Related CN204327986U (en) | 2015-01-26 | 2015-01-26 | Air-resistance type axle class sealing configuration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327986U (en) |
-
2015
- 2015-01-26 CN CN201520051688.6U patent/CN204327986U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20180126 |