CN201141438Y - Shaft-floating sealing device - Google Patents
Shaft-floating sealing device Download PDFInfo
- Publication number
- CN201141438Y CN201141438Y CNU2007201249337U CN200720124933U CN201141438Y CN 201141438 Y CN201141438 Y CN 201141438Y CN U2007201249337 U CNU2007201249337 U CN U2007201249337U CN 200720124933 U CN200720124933 U CN 200720124933U CN 201141438 Y CN201141438 Y CN 201141438Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- axle
- seal
- ring
- fluctuation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Sealing Devices (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses an axle fluctuation sealing device, which belongs to the technical field of the mechanical engineering. The axle fluctuation sealing device is composed of a sealing plate and a sealing groove, a sealing seat is fixed on a fixed seat, a sealing cover is fixed on the fixed seat, the fixed seat, and the sealing cover are the constitutive components of the installation space of the sealing device and are nested on the axle to form the installation space of the sealing device; the sealing plate, a radial sealing ring and the sealing groove are arranged in the installation space of the sealing device. The axle fluctuation sealing device has the advantages that the principle is simple, the structure is ingenious, the constitutive components are fewer, the manufacture and the processing are convenient, the assembly and the disassembly are convenient, in particular the rotary seal of the parts (for example, bearing) on the axle under the operating mode that the angle deflection or fluctuation of the axle is caused can be realized, the service life of the relative parts is prolonged, the production cost and the maintenance cost are reduced, thus the axle fluctuation sealing device can be widely used in the axle sealing structure which rotate at low speed (or under the static state) and has fluctuation sealing requirement and also can be used for eliminating the influence of the mechanical processing or installation error to guarantee the good sealing effect.
Description
Technical field
The utility model belongs to mechanical engineering technical field, discloses a kind of floating seal.
Background technique
In mechanical engineering technical field, standard seal part miscellaneous and nonstandard seal arrangement are widely used, and with important spare parts such as protection bearings, stop the intrusion of various impurity such as greasy dirt, dust to cause abnormal sound or damage.Common standard seal part has O shape rubber seal, felt collar oil sealing, rotary shaft lip seal, L shaped, J-shaped rubber seal etc., can satisfy basic seal request under simple operating mode.When single standard seal part does not satisfy seal request, then often adopt and the standard seal part is carried out the mode that organic assembling constitutes nonstandard seal arrangement reach sealing effect.More common a kind of nonstandard seal arrangement is made up of a seal ring, a radial direction seal ring and an axial sealing ring now, on seal ring, be processed with the twice groove, processing radially together, be used for installing radial direction seal ring, along axial direction processing, be used for installing axial sealing ring together.The major defect of the seal arrangement of this structure is the angle beat of axle or unsteady bad adaptability, unavoidably understand the angle of arrival beat or when unsteady (can be that multiple factors such as foozle, alignment error, mechanism needs itself, accident cause) at axle, seal ring produces the jam phenomenon with axle easily, cause abnormal sound, damage seal ring, when serious even can axle is stuck.Therefore need often overhaul, safeguard, change, increase manpower and fund cost greatly.
Summary of the invention
The purpose of this utility model is to provide a kind of floating seal, and being intended to solve at axle has angle beat or the sealing problem when unsteady.
The purpose of this utility model is achieved through the following technical solutions:
The seal arrangement installing space constitutes part and is enclosed within on the axle, constitutes the installing space of seal arrangement jointly.In the installing space of seal arrangement be sealing plate, radial direction seal ring, seal groove and axial sealing ring.Processing twice groove on the seal groove is radially processed and open end face from interior ring together, forms L shaped groove, is used for installing radial direction seal ring; Another road is processing vertically on opposite end face, forms U-groove bevel, is used for installing axial sealing ring.Ring and axle circumferential contact in the radial direction seal ring, open surface and sealing plate contact, sealing plate constitutes part with the seal arrangement installing space again and contacts, and stops impurity in axial direction to be invaded.Axial sealing ring constitutes part with the seal arrangement installing space and contacts, and stops impurity radially to be invaded.
When axle has the angle beat or when unsteady, sealing plate and seal groove constitute part with respect to the seal arrangement installing space and produce the slippage changing of the relative positions, also produce the mutual slippage changing of the relative positions between sealing plate and the seal groove simultaneously, so seal arrangement can not produce the jam phenomenon with axle; Simultaneously, radial direction seal ring and axial sealing ring be motion together thereupon under the drive of axle and seal groove, and its shape is subjected to angle beat or unsteady influence hardly, can be all the time keeps well contacting with separately sealing surface, so can reach good floating seal requirement.
The utility model structure is ingenious, constituent elements quantity is few, it is convenient to make processing, easy to loading and unloading, especially can be implemented in the rotary seal that axle has the axle under angle beat or the unsteady operating mode to go up component (as bearing), prolong the working life of related components, reduce manufacture cost and maintenance cost, can be widely used in low speed rotation (or static) and have in the axle sealing structure of floating seal requirement, also can be used for eliminating the influence of machining or alignment error to guarantee good sealing effect.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Among the figure, part 1 is a sealing plate, and part 2 is a radial direction seal ring, and part 3 is an axial sealing ring, and part 4 is a seal groove, and part 5 is a sealing seat, and part 6 is a sealing cover, and part 7 is an axle, and part 8 is a fixed base.
Embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is described further:
Sealing seat 5 and sealing cover 6 are exactly that so-called seal arrangement installing space constitutes part, and with the installing space that is enclosed within common formation seal arrangement on the axle 7, sealing seat 5 is fixed on the fixed base 8; Sealing plate 1, radial direction seal ring 2, axial sealing ring 3 and seal groove 4 are installed in the installing space of seal arrangement.The twice groove is arranged on the seal groove 4, radially process and open end face from interior ring together, form L shaped groove, be used for installing radial direction seal ring 2; Another road is processing vertically on opposite end face, forms U-groove bevel, is used for installing axial sealing ring 3.The interior ring of radial direction seal ring 2 and axle 7 circumferential contact, open surface contacts with sealing plate 1, and sealing plate 1 contacts with sealing seat 5 again, stops impurity in axial direction to be invaded.Axial sealing ring 3 contacts with sealing cover 6, stops impurity radially to be invaded.
When axle 7 has the angle beat or when unsteady, sealing plate 1 and seal groove 4 produce the slippage changing of the relative positions with respect to sealing seat 5 and sealing cover 6, also produce the mutual slippage changing of the relative positions between sealing plate 1 and the seal groove 4, so seal arrangement can not produce the jam phenomenons with axle 7; Simultaneously, radial direction seal ring 2 and axial sealing ring 3 be motion together thereupon under the drive of axle 7 and seal groove 4, its shape is subjected to angle beat or unsteady influence hardly, can be all the time keeps well contacting with separately sealing surface, so can reach good floating seal requirement.
As from the foregoing, the utility model principle is simple, structure is ingenious, constituent elements quantity is few, it is convenient to make processing, easy to loading and unloading, especially can be implemented in the rotary seal that axle has the axle under angle beat or the unsteady operating mode to go up component (as bearing), prolonged the working life of related components, manufacture cost and maintenance cost have been reduced, can be widely used in low speed rotation (or static) and have in the axle sealing structure of floating seal requirement, also can be used for eliminating the influence of machining or alignment error to guarantee good sealing effect.
Claims (2)
1. axle floating seal, form by sealing plate (1) and seal groove (4), it is characterized in that: sealing seat (5) is fixed on the fixed base (8), and sealing cover (6) is fixed on the sealing seat (5), and sealing seat (5) and sealing cover (6) are enclosed within axle (7) and go up the installing space that constitutes seal arrangement; Sealing plate (1), radial direction seal ring (2), axial sealing ring (3) and seal groove (4) are installed in the installing space of seal arrangement.
2. a kind of floating seal according to claim 1 is characterized in that: seal groove has the twice groove on (4), radially processes and open end face from interior ring together, forms L shaped groove, is used for installing radial direction seal ring (2); Another road is processing vertically on opposite end face, form U-groove bevel, be used for installing axial sealing ring (3), the interior ring of radial direction seal ring (2) and axle (7) circumferential contact, open surface contacts with sealing plate (1), sealing plate (1) contacts with sealing seat (5) again, and axial sealing ring (3) contacts with sealing cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201249337U CN201141438Y (en) | 2007-08-07 | 2007-08-07 | Shaft-floating sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201249337U CN201141438Y (en) | 2007-08-07 | 2007-08-07 | Shaft-floating sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201141438Y true CN201141438Y (en) | 2008-10-29 |
Family
ID=40069150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201249337U Expired - Lifetime CN201141438Y (en) | 2007-08-07 | 2007-08-07 | Shaft-floating sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201141438Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022540A (en) * | 2009-09-18 | 2011-04-20 | 上海冠龙阀门机械有限公司 | Floating shaft lever sealing structure |
| CN105065193A (en) * | 2015-08-29 | 2015-11-18 | 镇江大力液压马达股份有限公司 | High-pressure sealing cycloid hydraulic motor |
| CN106090224A (en) * | 2016-07-20 | 2016-11-09 | 中铁工程装备集团有限公司 | A kind of TBM floating type dust prevention system of main driving |
-
2007
- 2007-08-07 CN CNU2007201249337U patent/CN201141438Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022540A (en) * | 2009-09-18 | 2011-04-20 | 上海冠龙阀门机械有限公司 | Floating shaft lever sealing structure |
| CN105065193A (en) * | 2015-08-29 | 2015-11-18 | 镇江大力液压马达股份有限公司 | High-pressure sealing cycloid hydraulic motor |
| CN106090224A (en) * | 2016-07-20 | 2016-11-09 | 中铁工程装备集团有限公司 | A kind of TBM floating type dust prevention system of main driving |
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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: 20081029 |
|
| CX01 | Expiry of patent term |