CN214837819U - High-temperature ventilating dustproof bearing - Google Patents
High-temperature ventilating dustproof bearing Download PDFInfo
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- CN214837819U CN214837819U CN202023165806.6U CN202023165806U CN214837819U CN 214837819 U CN214837819 U CN 214837819U CN 202023165806 U CN202023165806 U CN 202023165806U CN 214837819 U CN214837819 U CN 214837819U
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- ring
- dust
- ring groove
- dustproof
- groove
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Abstract
The utility model aims at providing a high temperature dustproof bearing that breathes freely, include: the dustproof ventilating structure comprises an outer ring, an inner ring, a plurality of balls and a retainer which are arranged in an annular cavity formed between the inner ring and the outer ring, and two dustproof ventilating structures which are symmetrically arranged and correspond to two ends of the annular cavity one by one; dustproof ventilative structure includes: the outer ring groove is arranged on the inner side wall of the outer ring, the inner ring groove is arranged on the outer side wall of the inner ring, the dustproof ring is arranged in the outer ring groove, and the bimetallic strip is arranged in the outer ring groove; the inner side circumference of the dust ring is positioned in the inner ring groove, and gaps are formed between the inner side circumference of the dust ring and the bottom ring of the inner ring groove, between the outer end of the dust ring and the outer end ring of the inner ring groove, and between the inner end of the dust ring and the inner end ring of the inner ring groove; the dust ring is provided with an air hole, one end of the bimetallic strip is connected with the dust ring, and the other end of the bimetallic strip covers the inner end of the air hole. The high-temperature breathable dustproof bearing has the advantages that the heat inside the high-temperature breathable dustproof bearing is easy to dissipate, the grease inside the high-temperature breathable dustproof bearing is not easy to lose efficacy, and the service life of the high-temperature breathable dustproof bearing is long.
Description
Technical Field
The utility model belongs to the technical field of the bearing and specifically relates to a high temperature dustproof bearing that breathes freely.
Background
Dust caps are pressed into two end faces of the bearing to prevent internal grease from leaking; the structure of the dust bearing is known from a dust bearing disclosed in the utility model of the chinese patent application No. 202020066096.2; traditional dust bearings who uses under high temperature environment because work under sealed state, can not ventilative cooling, and after the work stops, inside heat also can not distribute very fast, has the inside grease of dust bearings easily to become invalid, and life is short not enough, consequently, designs an inside heat and easily distributes, and inside grease is difficult for becoming invalid, and the longer high temperature of life dust bearings that breathes freely becomes the problem of treating promptly.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the dust bearings who uses under high temperature environment at present, there is the inside grease of dust bearings easily inefficacy, and life is short not enough, provides the heat of an inside and easily gives off, and inside grease is difficult for becoming invalid, the longer high temperature ventilation dust bearings of life.
The utility model discloses a concrete technical scheme is:
a high temperature, gas permeable, dust resistant bearing comprising: the dustproof ventilating structure comprises an outer ring, an inner ring, a plurality of balls and a retainer which are arranged in an annular cavity formed between the inner ring and the outer ring, and two dustproof ventilating structures which are symmetrically arranged and correspond to two ends of the annular cavity one by one; dustproof ventilative structure includes: the outer ring groove is arranged on the inner side wall of the outer ring, the inner ring groove is arranged on the outer side wall of the inner ring, the dustproof ring is arranged in the outer ring groove, and the bimetallic strip is arranged in the outer ring groove; the inner side circumference of the dust ring is positioned in the inner ring groove, and gaps are formed between the inner side circumference of the dust ring and the bottom ring of the inner ring groove, between the outer end of the dust ring and the outer end ring of the inner ring groove, and between the inner end of the dust ring and the inner end ring of the inner ring groove; the dust ring is provided with an air hole, one end of the bimetallic strip is connected with the dust ring, and the other end of the bimetallic strip covers the inner end of the air hole.
Preferably, the dust ring comprises: the outer side of the framework ring is surrounded by an inner folding ring, the mounting counter bore is arranged at the inner side of the inner folding ring, and the outer end of the framework ring, the inner side and the elastomer of the outer side are coated; one end of the bimetallic strip is embedded in the mounting counter bore.
Preferably, the inner end of the elastic body is provided with a dust lip opposite to the inner end ring of the inner ring groove.
Preferably, the outer end ring of the outer ring groove is a guide inclined surface.
The bimetallic strip is also called as a thermal bimetallic strip, and because the thermal expansion coefficients of all component layers are different, when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetallic strip can bend towards one side of the passive layer, and the curvature of the composite material changes to generate deformation.
Compared with the prior art, the beneficial effects of the utility model are that: the high-temperature breathable dustproof bearing is used in a high-temperature environment, when the temperature of the bearing rises to a set value, the bimetallic strip deforms, the other end of the bimetallic strip, which covers the inner end of the air hole, is separated from the inner end of the air hole, so that inside and outside ventilation cooling is facilitated, and after work is stopped, the internal heat can be quickly dissipated until the temperature of the bearing drops to the set value, the other end of the bimetallic strip resets to cover the inner end of the air hole, the internal heat is easily dissipated, the internal grease is not easy to lose efficacy, and the service life is long. The inner side wall of the dust ring and the bottom ring of the inner ring groove, the outer end of the dust ring and the outer end ring of the inner ring groove, and gaps are formed between the inner end of the dust ring and the inner end ring of the inner ring groove, so that the dust ring and the inner ring rotating along with the rotating shaft are separated to reduce the motion resistance, a dust lip opposite to the inner end ring of the inner ring groove is arranged at the inner end of the dust ring, the gap is reduced to facilitate dust prevention, and even if the dust ring deforms, the dust lip contacts with the inner ring of the inner ring groove, and the friction can be reduced. The dustproof ring comprises a framework ring with an inner folding ring on the outer side wall and an elastic body for wrapping the outer end of the framework ring, the inner side wall and the outer side wall, so that the strength and the rigidity are improved, the deformation is reduced, and the press mounting of the dustproof ring is facilitated. The mounting counter bore arranged on the inner side wall of the inward-folding ring is beneficial to mounting the bimetallic strip and improving the connection strength. The outer end ring of the outer ring groove is a guide inclined plane, and the dust ring is convenient to assemble and disassemble.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the anti-dust bearing comprises an outer ring 1, an inner ring 2, an annular cavity 3, balls 4, a retainer 5, an outer ring groove 6, an inner ring groove 7, a dust ring 8, a bottom ring 9, an outer end ring 10, an inner end ring 11, air holes 12, an inward-folded ring 13, a skeleton ring 14, an installation counter bore 15, an elastic body 16, a dust lip 17, a guide inclined plane 18 and a bimetallic strip 19.
Detailed Description
The invention will be further described with reference to the drawings.
As shown in figure 1: a high temperature, gas permeable, dust resistant bearing comprising: the dustproof ventilating structure comprises an outer ring 1, an inner ring 2, a plurality of balls 4 and a retainer 5 which are arranged in an annular cavity 3 formed between the inner ring 2 and the outer ring 1, and two dustproof ventilating structures which are symmetrically arranged and correspond to two ends of the annular cavity 3 one by one; dustproof ventilative structure includes: an outer ring groove 6 arranged on the inner side wall of the outer ring 1, an inner ring groove 7 arranged on the outer side wall of the inner ring 2, a dust ring 8 arranged in the outer ring groove 6, and a bimetallic strip 19; the inner side circumference of the dust ring 8 is positioned in the inner annular groove 7, and gaps are formed between the inner side circumference of the dust ring 8 and the bottom ring 9 of the inner annular groove 7, between the outer end of the dust ring 8 and the outer end ring 10 of the inner annular groove 7, and between the inner end of the dust ring 8 and the inner end ring 11 of the inner annular groove 7; the dust ring 8 is provided with an air hole 12, one end of the bimetallic strip 19 is connected with the dust ring 8, and the other end covers the inner end of the air hole 12.
In this embodiment, the dust ring 8 includes: the outer side of the framework ring is surrounded by a framework ring 14 with an inner folding ring 13, a mounting counter bore 15 is arranged at the inner side of the inner folding ring 13, and an elastic body 16 is used for coating the outer end of the framework ring 14, the inner side and the outer side; one end of the bimetal 19 is embedded in the mounting counterbore 15. The inner end of the elastic body 16 is provided with a dust lip 17 opposite to the inner end ring 11 of the inner ring groove 7. The elastomer 16 and the dust lip 17 are made of high temperature resistant rubber.
The outer end ring of the outer ring groove 6 is a guide inclined surface 18.
The utility model has the advantages that: the high-temperature breathable dustproof bearing is used in a high-temperature environment, when the temperature of the bearing rises to a set value, the bimetallic strip deforms, the other end of the bimetallic strip, which covers the inner end of the air hole, is separated from the inner end of the air hole, so that inside and outside ventilation cooling is facilitated, and after work is stopped, the internal heat can be quickly dissipated until the temperature of the bearing drops to the set value, the other end of the bimetallic strip resets to cover the inner end of the air hole, the internal heat is easily dissipated, the internal grease is not easy to lose efficacy, and the service life is long. The inner side wall of the dust ring and the bottom ring of the inner ring groove, the outer end of the dust ring and the outer end ring of the inner ring groove, and gaps are formed between the inner end of the dust ring and the inner end ring of the inner ring groove, so that the dust ring and the inner ring rotating along with the rotating shaft are separated to reduce the motion resistance, a dust lip opposite to the inner end ring of the inner ring groove is arranged at the inner end of the dust ring, the gap is reduced to facilitate dust prevention, and even if the dust ring deforms, the dust lip contacts with the inner ring of the inner ring groove, and the friction can be reduced. The dustproof ring comprises a framework ring with an inner folding ring on the outer side wall and an elastic body for wrapping the outer end of the framework ring, the inner side wall and the outer side wall, so that the strength and the rigidity are improved, the deformation is reduced, and the press mounting of the dustproof ring is facilitated. The mounting counter bore arranged on the inner side wall of the inward-folding ring is beneficial to mounting the bimetallic strip and improving the connection strength. The outer end ring of the outer ring groove is a guide inclined plane, and the dust ring is convenient to assemble and disassemble.
In addition to the above embodiments, the technical features or technical data of the present invention can be selected and combined again within the scope disclosed in the claims and the specification of the present invention to constitute new embodiments, which can be realized by those skilled in the art without creative efforts, and therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.
Claims (4)
1. A high temperature, gas permeable, dust resistant bearing comprising: the outer lane, the inner circle is located a plurality of balls and the holder in the ring cavity that constitutes between inner circle and the outer lane, characterized by: the high-temperature ventilating dustproof bearing further comprises: two dustproof ventilating structures which are symmetrically arranged and correspond to the two ends of the annular cavity one by one; dustproof ventilative structure includes: the outer ring groove is arranged on the inner side wall of the outer ring, the inner ring groove is arranged on the outer side wall of the inner ring, the dustproof ring is arranged in the outer ring groove, and the bimetallic strip is arranged in the outer ring groove; the inner side circumference of the dust ring is positioned in the inner ring groove, and gaps are formed between the inner side circumference of the dust ring and the bottom ring of the inner ring groove, between the outer end of the dust ring and the outer end ring of the inner ring groove, and between the inner end of the dust ring and the inner end ring of the inner ring groove; the dust ring is provided with an air hole, one end of the bimetallic strip is connected with the dust ring, and the other end of the bimetallic strip covers the inner end of the air hole.
2. The high temperature, gas permeable, dust resistant bearing of claim 1 wherein: the dust ring includes: the outer side of the framework ring is surrounded by an inner folding ring, the mounting counter bore is arranged at the inner side of the inner folding ring, and the outer end of the framework ring, the inner side and the elastomer of the outer side are coated; one end of the bimetallic strip is embedded in the mounting counter bore.
3. The high temperature, gas permeable, dust resistant bearing of claim 2, wherein: the inner end of the elastic body is provided with a dust lip opposite to the inner end ring of the inner ring groove.
4. A high temperature, gas permeable, dust resistant bearing as claimed in claim 1, 2 or 3, wherein: the outer end ring of the outer ring groove is a guide inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023165806.6U CN214837819U (en) | 2020-12-24 | 2020-12-24 | High-temperature ventilating dustproof bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023165806.6U CN214837819U (en) | 2020-12-24 | 2020-12-24 | High-temperature ventilating dustproof bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214837819U true CN214837819U (en) | 2021-11-23 |
Family
ID=78869482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023165806.6U Active CN214837819U (en) | 2020-12-24 | 2020-12-24 | High-temperature ventilating dustproof bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214837819U (en) |
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2020
- 2020-12-24 CN CN202023165806.6U patent/CN214837819U/en active Active
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