CN204606943U - The two-way labyrinth type sealing ring of Idler bearing - Google Patents
The two-way labyrinth type sealing ring of Idler bearing Download PDFInfo
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- CN204606943U CN204606943U CN201520143638.0U CN201520143638U CN204606943U CN 204606943 U CN204606943 U CN 204606943U CN 201520143638 U CN201520143638 U CN 201520143638U CN 204606943 U CN204606943 U CN 204606943U
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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; By inner seal ring outer ring to inner ring direction, radial seal tooth height increases successively, and axially, annular shoulder height increases successively; Highest and lowermost level shoulder height seals tooth height above and below most high radial respectively; 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 from outside to inside; Inner seal ring inserts in exterior seal ring and forms tortuous space; Exterior seal ring inwall outer end is provided with elastic seal point one, and exterior seal ring outer wall outer end is provided with arc-shaped ring groove and elastic seal point two; It is convex stupefied that exterior seal ring outer wall the inner is provided with several arcs vertically.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;
It is convex stupefied that the inner of the outer wall of exterior seal ring is evenly provided with several arcs vertically.
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, to be evenly provided with six arcs vertically convex stupefied in the inner of the outer wall of exterior seal ring.
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 the inner end surface of exterior seal ring in the utility model embodiment 1;
Fig. 2 is the generalized section on Fig. 1 exterior seal ring A-A direction;
Fig. 3 is the structural representation of inner seal ring in the utility model embodiment 1;
Fig. 4 is the mounting structure schematic diagram of exterior seal ring and inner seal ring in the utility model embodiment 1;
Fig. 5 is the structural representation of inner seal ring in the utility model embodiment 2;
Fig. 6 is the structural representation of the bearing seat that the utility model is suitable for;
In figure, 1, arc is convex stupefied; 2, closure gasket groove; 3, outer ring step; 4, elastic seal point one; 5, arc-shaped ring groove; 6, elastic seal point two; 7, radial seal tooth; 8, axial interior ring-shaped step; 9, tortuous space; 10, annular boss; 11, bearing seat collar extension; 12, bearing seat arc is recessed stupefied.
Detailed description of the invention
Embodiment 1
The two-way labyrinth type sealing ring of a kind of Idler bearing, see shown in Fig. 1-4, 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 radial seal tooth 7 ring-shaped step 8 interior with the axis with three grades of steps of two circle concentric annular by outer ring to inner ring; And by the outer ring of inner seal ring to inner ring direction, the height of radial seal tooth 7 increases successively, axially, the shoulder height of ring-shaped step 8 increases successively; The height of highest step is higher than the height of the highest radial seal tooth 7, and the height of lowermost level step is lower than the height of the highest radial seal tooth 7.
The inner end surface of exterior seal ring is disposed with the closure gasket groove 2 cooperatively interacted with the radial seal tooth 7 on inner seal ring and the outer ring step 3 cooperatively interacted with the axially interior ring-shaped step 8 on inner seal ring by outer ring to inner ring.
The radial seal tooth 7 of inner seal ring and axially in ring-shaped step 8 closure gasket groove 2 that inserts exterior seal ring respectively and outer ring step 3, make between inner seal ring and exterior seal ring, to form mazy tortuous space 9.
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 5, is formed to the bending elastic seal point 26 of arc-shaped ring groove 5 end between arc-shaped ring groove 5 and the outer face of exterior seal ring.
The inner of the outer wall of exterior seal ring is evenly provided with six arcs convex stupefied 1 vertically.
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 8 of inner seal ring inserts in the outer ring step 3 of exterior seal ring, forms side seal; 3. the radial seal tooth 7 of inner seal ring inserts in the closure gasket groove 2 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 9; 4. seal ring is that nylon material is made, and makes elastic seal point 26 have elasticity, when seal ring is arranged on after outside bearing, in bearing seat, and arc-shaped ring groove 5 and elastic seal point 26 and bearing seat collar extension 11 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.
The inner of the outer wall of exterior seal ring be evenly provided with vertically six convex designs of stupefied 1 of arc be applicable to bearing seat inside face vertically evenly punching press have six recessed bearing seats of stupefied 12 (as shown in Figure 6) of bearing seat arc, such seal ring engages tightr with bearing seat, sealing property is better, and arc convex stupefied 1 also serves the effect of reinforced rib, adds the intensity of the outer wall of exterior seal ring.
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, is shown in shown in Fig. 1 and Fig. 2; The structure of inner seal ring as shown in Figure 5, 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 10.
The design of annular boss 10, 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 (5)
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 (7) 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 (8) 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 (7) increases successively, axially, the shoulder height of ring-shaped step (8) increases successively; The height of highest step is higher than the height of the highest radial seal tooth (7), and the height of lowermost level step is lower than the height of the highest radial seal tooth (7);
The inner end surface of exterior seal ring is disposed with the closure gasket groove (2) cooperatively interacted with the radial seal tooth (7) on inner seal ring and the outer ring step (3) cooperatively interacted with the axially interior ring-shaped step (8) on inner seal ring by outer ring to inner ring;
The radial seal tooth (7) of inner seal ring and axially in ring-shaped step (8) closure gasket groove (2) that inserts exterior seal ring respectively and outer ring step (3), make between inner seal ring and exterior seal ring, to form mazy tortuous space (9);
The outer end of the inwall of exterior seal ring is provided with the elastic seal point one (4) 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 (5), is formed and hold bending elastic seal point two (6) to arc-shaped ring groove (5) between arc-shaped ring groove (5) and the outer face of exterior seal ring;
The inner of the outer wall of exterior seal ring is evenly provided with several arcs convex stupefied (1) vertically.
2. the two-way labyrinth type sealing ring 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 (7) and have three grades of steps axially in ring-shaped step (8).
3. the two-way labyrinth type sealing ring of Idler bearing according to claim 1, is characterized in that the inner of the outer wall of described exterior seal ring is evenly provided with six arcs convex stupefied (1) vertically.
4. the two-way labyrinth type sealing ring 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 (10).
5. the two-way labyrinth type sealing ring 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 |
|---|---|---|---|
| CN201520143638.0U CN204606943U (en) | 2015-03-14 | 2015-03-14 | The two-way labyrinth type sealing ring of Idler bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520143638.0U CN204606943U (en) | 2015-03-14 | 2015-03-14 | The two-way labyrinth type sealing ring of Idler bearing |
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| CN204606943U true CN204606943U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520143638.0U Active CN204606943U (en) | 2015-03-14 | 2015-03-14 | The two-way labyrinth type sealing ring of Idler bearing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108820757A (en) * | 2018-08-07 | 2018-11-16 | 兖矿东华重工有限公司 | Seal assembly, bearing block and carrying roller |
| CN109505986B (en) * | 2018-12-28 | 2024-04-09 | 张家港市兰航机械有限公司 | Sealing structure of side press roller |
-
2015
- 2015-03-14 CN CN201520143638.0U patent/CN204606943U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108820757A (en) * | 2018-08-07 | 2018-11-16 | 兖矿东华重工有限公司 | Seal assembly, bearing block and carrying roller |
| CN109505986B (en) * | 2018-12-28 | 2024-04-09 | 张家港市兰航机械有限公司 | Sealing structure of side press roller |
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