CN203392403U - Roller sealing mechanism - Google Patents
Roller sealing mechanism Download PDFInfo
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- CN203392403U CN203392403U CN201320502507.8U CN201320502507U CN203392403U CN 203392403 U CN203392403 U CN 203392403U CN 201320502507 U CN201320502507 U CN 201320502507U CN 203392403 U CN203392403 U CN 203392403U
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- ring
- bearing
- inner shield
- seal
- sealing
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Abstract
The utility model belongs to the technical field of a roller, and discloses a roller sealing mechanism in a cylinder body of a roller bearing base. According to the technical scheme, the roller sealing mechanism is arranged in the cylinder body forming the roller bearing base, and structurally comprises a sealing ring on the inner side of a bearing, the bearing, a cylindrical inner retainer ring, a labyrinth sealing mechanism, a bearing clamp spring and a sealing cover, wherein the cylindrical inner retainer ring, the labyrinth sealing mechanism, the bearing clamp spring and the sealing cover are arranged on the outer side of the bearing in sequence; the outer end part of the cylindrical inner retainer ring is of a center ring structure; the labyrinth sealing mechanism is arranged in the wall of the inner retainer ring and consists of an inner sealing ring and an outer sealing ring; the sealing cover is provided with a center cylinder inserted into a center ring; the center cylinder is sleeved with a rubber sealing ring. The roller sealing mechanism with the structure can be used for effectively overcoming the defect that dust enters from the connection part of the end cover, and is applicable to an inflammable and explosive working condition.
Description
Technical field
The utility model belongs to Idler Technology field, is particularly arranged at the cylindrical shell middle idler roller sealing mechanism of supporting roller bearing seat.
Background technology
In occasions such as mine, grain depots, by conveyer, completed the conveying operation of material, the structure of conveyer consists of carrying roller and the actuating unit of frame, load-transfer device, support belt.And carrying roller is the main consumable accessory that forms conveyer, extend its service life the operation conditions of conveyer is played an important role; And the sealing property that forms the sealing mechanism of carrying roller is the decisive factor that determines carrying roller length in service life.As shown in Figure 1, the sealing mechanism 4 and the center shaft 5 that in roller skin 1, the bearing seat 2 that is arranged at its two ends, bearing seat, include bearing 3 form the idler structure using at present.Wherein, the structure that forms the sealing mechanism Ye Ji supporting roller sealing mechanism in bearing seat comprises, is arranged at the seal ring 6 of bearing 3 inner sides, the inside and outside seal ring 7,8 of labyrinth type that is respectively arranged with corresponding a plurality of concavo- convex ring 71,81, metal inner shield ring 9, metal outer baffle ring 10, sealing ring cap 11 and bearing snap spring 12 and forms.In the structure of Gai supporting roller sealing mechanism, because metal outer baffle ring 10 is buckled on exterior seal ring 8 blowout patches that stretch out metal inner shield ring 9, realize the sealing to the inside and outside seal ring 7,8 of labyrinth type, to prevent that dust from entering thus, cause bearing damage; But metal inner shield ring 9 and metal outer baffle ring 10 are metal construction, and it snaps together while relatively rotating---the two Jian gap is compared with hour there will be collision friction spark to cause potential safety hazard, gap that the two retains to be difficult to realize sealing effectiveness when larger; Therefore the sealing of this structure is difficult to meet requirements.
Utility model content
The object that the utility model solves is just to provide that a kind of good sealing effect, dust are not easy to enter in carrying roller body, the supporting roller sealing mechanism of long service life.
For achieving the above object, the technical solution adopted in the utility model is:
A mechanism, comprises and being arranged in bearing seat cylinder body
The seal ring that the inner side of bearing arranges, bearing, in the arranged outside of this bearing
Be respectively arranged with the inside and outside seal ring of labyrinth type that corresponding a plurality of concavo-convex latch closure connects formation,
Metal inner shield ring,
Bearing snap spring,
Seal cover cap, is characterized in that:
Described inner shield ring is the tubular construction enclosing centered by outer end,
The labyrinth seal mechanism consisting of described interior exterior seal ring is fixed in the circle wall of described tubular construction inner shield ring,
Described seal cover cap is provided with center drum, and is plugged in the central ring of described inner shield ring,
On described center drum, be socketed with rubber seal ring;
Seal ring described above, inner seal ring and inner shield ring are relative with described bearing seat cylinder body fixing, with the roller skin that forms carrying roller, around center shaft, rotate; Described exterior seal ring is relative fixing with described center shaft with seal cover cap.
Wherein, the additional technical feature of formation supporting roller sealing mechanism also comprises:
---described inner shield ring is that metal construction ，Qi end is round platform ring structure, and described rubber seal ring is buckled on this round platform ring;
---the diameter of described seal cover cap and the external diameter of described inner shield ring match;
---this spherical cap-shaped structure that is evagination of described sealing;
---the inner end of described inner shield ring is provided with radially folding circle.
Supporting roller sealing provided by the utility model mechanism compared with the existing technology has the following advantages: one, owing to forming, good springiness, wear-resisting rubber seal ring between the inner shield ring of supporting roller sealing mechanism and seal cover cap, have been increased, not only make the connection of inner shield ring and seal cover cap tightr, there is better dustproof, water resistance, and be difficult for producing static, spark, make the carrying roller with sealing mechanism be applicable to inflammable, explosive working environment.Its two, because the diameter of seal cover cap and the diameter of inner shield ring match, and be projective structure, therefore make sealing place be difficult for retaining dust and water, extended the service life of carrying roller.
Accompanying drawing explanation
Fig. 1 is the cutting plane structural representation of the supporting roller sealing mechanism of prior art;
Fig. 2 is the cutting plane structural representation of supporting roller sealing provided by the utility model mechanism.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the structure of supporting roller sealing provided by the utility model mechanism is described in further detail.
As shown in Figure 2, be the axial section structural representation of supporting roller sealing provided by the utility model mechanism.This supporting roller sealing mechanism is arranged in the cylindrical shell 21 that forms supporting roller bearing seat 2, its structure comprises the seal ring 6 that is arranged at bearing 3 inner sides, centered by being set in turn in the outer end in this bearing outside, enclosing the tubular inner shield ring 13 of 131 structures and be arranged at the labyrinth seal mechanism being formed by interior exterior seal ring 7,8 in these inner shield ring 13 circle walls 132, bearing snap spring 12 and the seal cover cap 14 that is provided with the center drum 141 in the above-mentioned central ring 131 of insertion are socketed with rubber seal ring 15 on described center drum 141.
In the structure of above-mentioned supporting roller sealing mechanism, inner seal ring 7 is provided with three concavo-convex rings (can be a plurality of) 71, exterior seal ring 8 is provided with three the concavo-convex rings 81 corresponding with the concavo-convex ring 71 of inner seal ring 7, and the corresponding snapping of concavo-convex ring of this inside and outside seal ring is that the outer bulge loop 82 of exterior seal ring 8 is buckled in the labyrinth seal mechanism that two concavo-convex rings of the outer formation of outer bulge loop 72 of inner seal ring 7 interlock.
In above-mentioned structure, seal ring 6, inner seal ring 7 and inner shield ring 13 are relative fixing with the cylindrical shell 21 of bearing seat, with the roller skin 1 that forms carrying roller, around center shaft 5, rotate; Exterior seal ring 8 is relative with center shaft 5 with seal cover cap 14 fixing.
In order further to improve the sealing property of supporting roller sealing mechanism,
---the seal cover cap 14 that inner shield ring and cover insert in this inner shield ring end central ring 131 is made by metallic material, and forms the rubber seal ring 15 overlapping on the central tube of seal cover cap, makes the two formation hermetically-sealed construction; Its two Jian gap can dwindle greatly, when the two relatively rotates, not only can greatly improve its sealing property and effectively prevent entering of dust, but also can effectively avoid the phenomenon of the two generation friction spark to occur, be conducive to the expansion of its environment for use scope; In said structure, the end that forms inner shield ring is round platform ring 134 structures, and its rubber seal ring 15 can directly be buckled on this round platform ring, has further improved its sealing property;
---the diameter of seal cover cap and the external diameter of inner shield ring matches and be spherical cap-shaped structure, make the directly full inner shield ring of button end of seal cover cap, improved its two contact surface, can effectively prevent that dust from entering inner possibility by the two Jian gap;
---the inner end of inner shield ring is provided with the radially folding circle 133 of the labyrinth seal mechanism forming for exterior seal ring in fixing 7,8, is conducive to improve the sealing property of 7,8 of interior exterior seal rings.
Claims (5)
1.Yi Zhong supporting roller sealing mechanism, comprises and being arranged in bearing seat cylinder body
The seal ring that the inner side of bearing arranges, bearing, in the arranged outside of this bearing
Be respectively arranged with the inside and outside seal ring of labyrinth type that corresponding a plurality of concavo-convex latch closure connects formation,
Metal inner shield ring,
Bearing snap spring,
Seal cover cap, is characterized in that:
Described inner shield ring (13) is the tubular construction of circle (131) centered by outer end,
The labyrinth seal mechanism consisting of described interior exterior seal ring (7,8) is fixed in the circle wall (132) of described tubular construction inner shield ring (13),
Described seal cover cap (14) is provided with center drum (141), and is plugged in the central ring (131) of described inner shield ring (13),
On described center drum (141), be socketed with rubber seal ring (15);
Seal ring described above, inner seal ring and inner shield ring are relative with described bearing seat cylinder body fixing, with the roller skin that forms carrying roller, around center shaft, rotate; Described exterior seal ring is relative fixing with described center shaft with seal cover cap.
2. supporting roller sealing according to claim 1 mechanism, is characterized in that: described inner shield ring is that metal construction ，Qi end is round platform ring structure, and described rubber seal ring is buckled on this round platform ring.
3. supporting roller sealing according to claim 1 and 2 mechanism, is characterized in that: the diameter of described seal cover cap and the external diameter of described inner shield ring match.
4. supporting roller sealing according to claim 1 mechanism, is characterized in that: this is the spherical cap-shaped structure of evagination for described sealing.
5. supporting roller sealing according to claim 1 mechanism, is characterized in that: the inner end of described inner shield ring is provided with radially folding circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320502507.8U CN203392403U (en) | 2013-08-18 | 2013-08-18 | Roller sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320502507.8U CN203392403U (en) | 2013-08-18 | 2013-08-18 | Roller sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203392403U true CN203392403U (en) | 2014-01-15 |
Family
ID=49903950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320502507.8U Expired - Lifetime CN203392403U (en) | 2013-08-18 | 2013-08-18 | Roller sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203392403U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106144481A (en) * | 2016-08-02 | 2016-11-23 | 李高明 | Idler for belt conveyer bearing protection device |
| RU210465U1 (en) * | 2021-08-24 | 2022-04-15 | Общество с ограниченной ответственностью "ТопРоллерс" | conveyor roller |
-
2013
- 2013-08-18 CN CN201320502507.8U patent/CN203392403U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106144481A (en) * | 2016-08-02 | 2016-11-23 | 李高明 | Idler for belt conveyer bearing protection device |
| RU210465U1 (en) * | 2021-08-24 | 2022-04-15 | Общество с ограниченной ответственностью "ТопРоллерс" | conveyor roller |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |