CN204606942U - The two-way labyrinth type sealing ring of a kind of Idler bearing - Google Patents
The two-way labyrinth type sealing ring of a kind of Idler bearing Download PDFInfo
- Publication number
- CN204606942U CN204606942U CN201520143632.3U CN201520143632U CN204606942U CN 204606942 U CN204606942 U CN 204606942U CN 201520143632 U CN201520143632 U CN 201520143632U CN 204606942 U CN204606942 U CN 204606942U
- Authority
- CN
- China
- Prior art keywords
- ring
- seal ring
- seal
- exterior
- tooth
- 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.)
- Active
Links
Landscapes
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses the two-way labyrinth type sealing ring of a kind of Idler bearing, relate to the configuring technical field of bearing or sealing arrangement.Comprise inside and outside seal ring, inner seal ring outer face is provided with more than the above radial seal tooth of two circles and two-stage axially interior ring-shaped step from outside to inside successively; By inner seal ring outer ring to inner ring direction, radial seal tooth height increases successively, and axially, annular shoulder height increases successively; The superlative degree and lowermost level shoulder height are respectively above and below the highest radial seal tooth height; Exterior seal ring inner end surface is provided with the closure gasket groove coordinated with radial seal tooth and the outer ring step coordinated with axial interior ring-shaped step by outer ring successively to inner ring; Inner seal ring inserts in exterior seal ring, between form tortuous space; Exterior seal ring inwall outer end is provided with the elastic seal point one bending to pointed shape to the inside, and exterior seal ring outer wall outer end is provided with arc-shaped ring groove and elastic seal point two.The utility model leak tightness and self-lubricating property good, extend bearing service life.
Description
Technical field
The utility model relates to the configuring technical field of bearing or sealing arrangement.
Background technology
Carrying roller comprises cylindrical shell, bearing, bearing seat, axle, seal ring, is provided with bearing seat between its middle cylinder body and axle, is bearing, is provided with seal ring outside bearing, in bearing seat between bearing seat and axle.Carrying roller is the important component part of belt conveyer, and the quality of its quality directly affects the service life of conveyer.Produce special quality carrying roller, strictly must control from the selection of structure, each parts material and manufacture technology.
Install bearing and seal ring thereof in bearing seat, seal ring is the quality of the important component part of Idler bearing, roller bearing sealing performance, and the service life for Idler bearing has a great impact.Sealing is to prevent extraneous dust, coal dust, moisture etc. from invading bearing.If the upper a large amount of dust of bearing portion attachment, coal slime, the materials such as water, can affect the normal work of bearing, shorten the service life of bearing.
Seal ring can be divided into contact-type seal and non-contacting seal by sealing principle.Contact-type seal is used for the not too high situation of rotative speed, and non-contacting seal is used for the higher occasion of rotative speed.Supporting roller sealing generally adopts non-contacting seal, i.e. labyrinth seal.
Existing non-contacting sealing structure is simple, tolerance clearance is not suitable for using, roller revolving resistance is less, but water-tight, dust-proof effect are bad, and self lubricity is poor, after sewage, dust enter carrying roller, the rapid deterioration of carrying roller lubricating condition can be caused to cause lubrication failure, and then cause carrying roller premature deterioration, the design life that out of reach is specified, bring very large limitation to production work.
Utility model content
The technical problems to be solved in the utility model is to provide the two-way labyrinth type sealing ring of a kind of Idler bearing, has that structure is simple, good airproof performance, self-lubricating property are good, rotate feature flexibly, extends the service life of carrying roller and bearing.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: the two-way labyrinth type sealing ring of a kind of Idler bearing, comprise inner seal ring and the exterior seal ring relative with inner seal ring, the inwall of inner seal ring is taper, interference fit is formed with axle, rotate with axle, and be embedded in exterior seal ring, the outer face of inner seal ring is disposed with the radial seal tooth of the above concentric annular of two circles by outer ring to inner ring and there is two-stage with the axially interior ring-shaped step of topping bar; And by the outer ring of inner seal ring to inner ring direction, the height of radial seal tooth increases successively, axially, the shoulder height of ring-shaped step increases successively; The height of highest step is higher than the height of the highest radial seal tooth, and the height of lowermost level step is lower than the height of the highest radial seal tooth;
The inner end surface of exterior seal ring is disposed with the closure gasket groove cooperatively interacted with the radial seal tooth on inner seal ring and the outer ring step cooperatively interacted with the axially interior ring-shaped step on inner seal ring by outer ring to inner ring;
The radial seal tooth of inner seal ring and axially in the ring-shaped step closure gasket groove that inserts exterior seal ring respectively and outer ring step, make between inner seal ring and exterior seal ring, to form mazy tortuous space;
The outer end of the inwall of exterior seal ring is provided with the elastic seal point one being bent to form a pointed shape to the inside, the outer end of the outer wall of exterior seal ring is provided with arc-shaped ring groove, is formed to the bending elastic seal point two of arc-shaped ring groove end between arc-shaped ring groove and the outer face of exterior seal ring.
Preferably, on the outer face of inner seal ring by outer ring to inner ring be disposed with two circle concentric annular radial seal tooth and have three grades of steps axially in ring-shaped step.
Preferably, the inner ring place of the inner end surface of inner seal ring is provided with a circle annular boss.
Preferably, seal ring is that nylon material is made.
The beneficial effect adopting technique scheme to produce is: this ring structure is simple, good airproof performance, total sealing everywhere: 1. inner seal ring cooperation is embedded in exterior seal ring, make to be formed between the elastic seal point one on the highest step of inner seal ring and exterior seal ring to seal, prevent the intrusions such as extraneous dust, coal dust, moisture; 2. the axially interior ring-shaped step of inner seal ring inserts in the outer ring step of exterior seal ring, forms side seal; 3. the radial seal tooth of inner seal ring inserts in the closure gasket groove of exterior seal ring, forms radial seal; 2. and 3. combine and make between inner seal ring and exterior seal ring, to form mazy tortuous space; 4. elastic seal point two has elasticity, when seal ring is arranged on after outside bearing, in bearing seat, arc-shaped ring groove and elastic seal point two with bearing seat collar extension elastic seal.Above-mentionedly seal combination everywhere, make in the very difficult intrusion bearings such as extraneous dust, coal dust, moisture, good seal performance, and this seal ring self-lubricating property is good, rotate flexibly, extend the service life of carrying roller and bearing.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail;
Fig. 1 is the structural representation of exterior seal ring in the utility model embodiment 1;
Fig. 2 is the structural representation of inner seal ring in the utility model embodiment 1;
Fig. 3 is the mounting structure schematic diagram of exterior seal ring and inner seal ring in the utility model embodiment 1;
Fig. 4 is the structural representation of inner seal ring in the utility model embodiment 2;
Fig. 5 is the structural representation of supporting roller bearing seat.
In figure, 1, closure gasket groove; 2, outer ring step; 3, elastic seal point one; 4, arc-shaped ring groove; 5, elastic seal point two; 6, radial seal tooth; 7, axial interior ring-shaped step; 8, tortuous space; 9, annular boss; 10, bearing seat collar extension.
Detailed description of the invention
Embodiment 1
A kind of carrier roller bearing seat, see shown in Fig. 1-3, the two-way labyrinth type sealing ring of a kind of Idler bearing, comprise inner seal ring and the exterior seal ring relative with inner seal ring, the inwall of inner seal ring is taper, forms interference fit, rotate with axle with axle, and be embedded in exterior seal ring, the outer face of inner seal ring is disposed with radial seal tooth 6 ring-shaped step 7 interior with the axis with three grades of steps of two circle concentric annular to inner ring by outer ring; And by the outer ring of inner seal ring to inner ring direction, the height of radial seal tooth 6 increases successively, axially, the shoulder height of ring-shaped step 7 increases successively; The height of highest step is higher than the height of the highest radial seal tooth 6, and the height of lowermost level step is lower than the height of the highest radial seal tooth 6.
The inner end surface of exterior seal ring is disposed with the closure gasket groove 1 cooperatively interacted with the radial seal tooth 6 on inner seal ring and the outer ring step 2 cooperatively interacted with the axially interior ring-shaped step 7 on inner seal ring by outer ring to inner ring.
The radial seal tooth 6 of inner seal ring and axially in ring-shaped step 7 closure gasket groove 1 that inserts exterior seal ring respectively and outer ring step 2, make between inner seal ring and exterior seal ring, to form mazy tortuous space 8.
The outer end of the inwall of exterior seal ring is provided with the elastic seal point 1 being bent to form a pointed shape to the inside, the outer end of the outer wall of exterior seal ring is provided with arc-shaped ring groove 4, is formed to the bending elastic seal point 25 of arc-shaped ring groove 4 end between arc-shaped ring groove 4 and the outer face of exterior seal ring.
Seal ring is that nylon material is made.
When this seal ring uses in carrying roller, first that inner seal ring is relative with exterior seal ring, inner seal ring cooperation is embedded in after in exterior seal ring, and by seal ring integral installation outside bearing, in bearing seat, exterior seal ring outer face is positioned at outside.
This ring structure is simple, good airproof performance, total sealing everywhere: 1. inner seal ring cooperation is embedded in exterior seal ring, makes to be formed between the elastic seal point 1 on the highest step of inner seal ring and exterior seal ring to seal, prevents the intrusions such as extraneous dust, coal dust, moisture; 2. the axially interior ring-shaped step 7 of inner seal ring inserts in the outer ring step 2 of exterior seal ring, forms side seal; 3. the radial seal tooth 6 of inner seal ring inserts in the closure gasket groove 1 of exterior seal ring, forms radial seal; 2. and 3. combine and make between inner seal ring and exterior seal ring, to form mazy tortuous space 8; 4. seal ring is that nylon material is made, and makes elastic seal point 25 have elasticity, and when seal ring is arranged on after outside bearing, in bearing seat, arc-shaped ring groove 4 and elastic seal point 25 and bearing seat collar extension 10(are as shown in Figure 5) elastic seal.Above-mentionedly seal combination everywhere, make in the very difficult intrusion bearings such as extraneous dust, coal dust, moisture, good seal performance, and this seal ring self-lubricating property is good, rotate flexibly, extend the service life of carrying roller and bearing.
Embodiment 2
The two-way labyrinth type sealing ring of a kind of Idler bearing, the structure of exterior seal ring with the structure of exterior seal ring in embodiment 1, as shown in Figure 1; The structure of inner seal ring as shown in Figure 4, is with the difference of embodiment 1, and the inner ring place of the inner end surface of inner seal ring is provided with a circle annular boss 9.
The design of annular boss 9, can be used to regulate the endplay between seal ring and bearing.
This ring structure is simple, good airproof performance, self-lubricating property are good, rotation is flexible, extend the service life of carrying roller and bearing, is easy to promote the use of.
Claims (4)
1. the two-way labyrinth type sealing ring of Idler bearing, comprise inner seal ring and the exterior seal ring relative with inner seal ring, it is characterized in that, the inwall of inner seal ring is taper, interference fit is formed with axle, rotate with axle, and be embedded in exterior seal ring, the outer face of inner seal ring is disposed with the radial seal tooth (6) of the above concentric annular of two circles by outer ring to inner ring and there is two-stage with the interior ring-shaped step (7) of the axis of topping bar; And by the outer ring of inner seal ring to inner ring direction, the height of radial seal tooth (6) increases successively, axially, the shoulder height of ring-shaped step (7) increases successively; The height of highest step is higher than the height of the highest radial seal tooth (6), and the height of lowermost level step is lower than the height of the highest radial seal tooth (6);
The inner end surface of exterior seal ring is disposed with the closure gasket groove (1) cooperatively interacted with the radial seal tooth (6) on inner seal ring and the outer ring step (2) cooperatively interacted with the axially interior ring-shaped step (7) on inner seal ring by outer ring to inner ring;
The radial seal tooth (6) of inner seal ring and axially in ring-shaped step (7) closure gasket groove (1) that inserts exterior seal ring respectively and outer ring step (2), make between inner seal ring and exterior seal ring, to form mazy tortuous space (8);
The outer end of the inwall of exterior seal ring is provided with the elastic seal point one (3) being bent to form a pointed shape to the inside, the outer end of the outer wall of exterior seal ring is provided with arc-shaped ring groove (4), is formed and hold bending elastic seal point two (5) to arc-shaped ring groove (4) between arc-shaped ring groove (4) and the outer face of exterior seal ring.
2. the two-way labyrinth type sealing ring of a kind of Idler bearing according to claim 1, on the outer face that it is characterized in that described inner seal ring by outer ring to inner ring be disposed with two circle concentric annular radial seal tooth (6) and have three grades of steps axially in ring-shaped step (7).
3. the two-way labyrinth type sealing ring of a kind of Idler bearing according to claim 1, is characterized in that the inner ring place of the inner end surface of described inner seal ring is provided with a circle annular boss (9).
4. the two-way labyrinth type sealing ring of a kind of Idler bearing according to claim 1, is characterized in that described seal ring is that nylon material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520143632.3U CN204606942U (en) | 2015-03-14 | 2015-03-14 | The two-way labyrinth type sealing ring of a kind of Idler bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520143632.3U CN204606942U (en) | 2015-03-14 | 2015-03-14 | The two-way labyrinth type sealing ring of a kind of Idler bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204606942U true CN204606942U (en) | 2015-09-02 |
Family
ID=53959513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520143632.3U Active CN204606942U (en) | 2015-03-14 | 2015-03-14 | The two-way labyrinth type sealing ring of a kind of Idler bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204606942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797082A (en) * | 2019-11-13 | 2021-05-14 | 舍弗勒技术股份两合公司 | Spring damper bearing |
-
2015
- 2015-03-14 CN CN201520143632.3U patent/CN204606942U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797082A (en) * | 2019-11-13 | 2021-05-14 | 舍弗勒技术股份两合公司 | Spring damper bearing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2722544B1 (en) | Method for replacing sealing elements on a rolling bearing assembly and set of sealing elements | |
| CN202215736U (en) | Sealing structure for traveling gearbox of railway vehicle | |
| CN205277699U (en) | Wind generating set's bearing seal filtration and aerogenerator | |
| CN204606943U (en) | The two-way labyrinth type sealing ring of Idler bearing | |
| CN204606942U (en) | The two-way labyrinth type sealing ring of a kind of Idler bearing | |
| CN203335646U (en) | Sealing device of motor bearing | |
| CN204437074U (en) | Steering axle of automobile thrust-bearing | |
| CN203926390U (en) | A kind of roller bearing | |
| CN201786262U (en) | Two-stage radial rubber seal roller bit | |
| CN204025366U (en) | There is the roller bearing units of dustproof guard ring | |
| CN201661608U (en) | Bearing seal assembly for rolling mills | |
| CN202912316U (en) | Carrier roller bearing combined type seal structure | |
| CN205937458U (en) | Double turntable bearing with footpath ball | |
| CN202301436U (en) | Inner oblique tooth type turntable bearing | |
| CN203051506U (en) | Three-point-contact sealing bearing | |
| CN209262084U (en) | A kind of bearing T shaped sealing structure of biserial cone axis | |
| CN203627545U (en) | External spherical surface ball bearing with vertical type seat | |
| CN203979134U (en) | Sealed type hub bearing | |
| CN205978105U (en) | Agricultural machinery wheel hub bearing sealing device for unit | |
| CN106168257A (en) | A kind of agricultural machine wheel hub bearing unit sealing device | |
| CN201396434Y (en) | Novel non-abrasion shaft oil seal | |
| CN201651051U (en) | Composite rolling bearing | |
| CN203130817U (en) | Bearing seat for roller type crushing machine | |
| CN206682169U (en) | A kind of vertical shaft bearing with waterproof construction | |
| CN203757002U (en) | Elastic and flexible variable sealing assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |