CN210175750U - Carrier roller with low-damping sealing structure - Google Patents
Carrier roller with low-damping sealing structure Download PDFInfo
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- CN210175750U CN210175750U CN201920897259.9U CN201920897259U CN210175750U CN 210175750 U CN210175750 U CN 210175750U CN 201920897259 U CN201920897259 U CN 201920897259U CN 210175750 U CN210175750 U CN 210175750U
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- ring
- sealing sleeve
- sealing
- bearing
- seal
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model relates to a bearing roller, especially a bearing roller of low damping seal structure for belt conveyor. An inner side sealing ring is arranged between one side of the bearing and the cover cap, an inner sealing sleeve is arranged on the other side of the bearing, an inner sealing ring is arranged between the inner sealing sleeve and the outer sealing sleeve, the contact end of the inner sealing sleeve and the bearing is of a stepped groove structure, the maximum diameter end of the inner labyrinth seal I is embedded in the stepped groove structure, the first double-ring end of the inner labyrinth seal I is embedded into the second double-ring end of the inner labyrinth seal II and keeps a distance, the aperture end of the inner labyrinth seal II is of a stepped structure, the stepped structure is matched with the stepped structure of the outer sealing sleeve, and the axial gap between the outer sealing sleeve and the inner sealing sleeve is larger than the radial gap between the outer sealing sleeve and the inner sealing ring. The axial clearance between the outer sealing cover and the inner sealing sleeve is larger than the radial clearance between the outer sealing cover and the inner sealing ring, so that the sealing effect of the carrier roller is improved.
Description
Technical Field
The utility model relates to a bearing roller, especially a bearing roller of low damping seal structure for belt conveyor.
Background
At present, the sealing types of the carrier roller adopted by various belt conveyor manufacturers mainly include a common labyrinth seal and a contact type waterproof seal, the rotation resistance is relatively large, the structure is complex, a high-power motor can be selected in the selection of the motor power, the driving cost is increased, and in addition, unnecessary energy consumption is also increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a can satisfy original seal structure's various parameter index, can show the bearing roller that reduces rotational resistance again.
The purpose of the invention is realized by adopting the following technical scheme:
a carrier roller with a low-damping sealing structure comprises a roller shell, a shaft, a bearing and a cover cap, wherein an inner sealing ring is arranged between one side of the bearing and the cover cap, an inner sealing sleeve is arranged on the other side of the bearing, an inner sealing ring is arranged between the inner sealing sleeve and the outer sealing sleeve, the contact end of the inner sealing sleeve and the bearing is of a stepped groove structure, the maximum diameter end of an inner labyrinth seal I is embedded in the stepped groove structure, a first double-ring end of the inner labyrinth seal I is embedded into a second double-ring end of an inner labyrinth seal II and keeps a distance, the aperture end of the inner labyrinth seal II is of a stepped structure, the stepped structure is matched with the stepped structure part of the outer sealing sleeve, and the axial gap between the outer sealing sleeve and the inner sealing sleeve is larger than the radial gap between the.
Compared with the prior art, the axial clearance of the outer sealing cover and the inner sealing cover is larger than the radial clearance of the outer sealing cover and the inner sealing ring, the sealing effect of the carrier roller is improved, the possibility that dust enters a sealing channel is structurally reduced, the sealing effect of the sealing structure is better than that of the prior art, and the rotating resistance is lower than that of the prior art.
The utility model discloses a preferred scheme is:
a check ring is arranged on the other side of the bearing and clamped on the tool withdrawal groove; the other side of the retainer ring is contacted with one end of the inner seal labyrinth II. The use of the check ring between the bearing and the inner labyrinth seal II and the structure that the check ring is not arranged on the outer side of the seal improve the axial bearing of the carrier roller, meanwhile, the seal is not stressed, the defects in the prior art are overcome, the rotary resistance of the carrier roller, which can meet various parameter indexes of the original seal structure and can be obviously reduced, is provided for the industry, the waste of electric power is avoided, and the energy-saving requirement is met.
The retainer ring adopts a C-shaped structure.
The minimum radial clearance between the outer sealing cover and the inner sealing ring is 0.3-0.5 mm.
The outer seal cover is in interference fit with the shaft.
The axial clearance between the outer sealing cover and the inner sealing sleeve is set to be two, and the radial clearance between the outer sealing cover and the inner sealing ring is set to be two.
The hole of the inner sealing ring is in interference fit with the minimum diameter of the inner sealing sleeve.
Drawings
Fig. 1 is a schematic diagram of a prior art structure.
Fig. 2 is a schematic structural view of the carrier roller with a low-damping sealing structure of the present invention.
FIG. 3 is a schematic structural diagram of an inner labyrinth seal.
FIG. 4 is a schematic structural view of the inner labyrinth seal II.
Fig. 5 is a schematic structural view of the inner gland.
In the figure: the roller shell comprises a roller shell 1, a shaft 2, a bearing 3, a cover cap 4, a first inner labyrinth seal 5, a first double annular end 501, a second inner labyrinth seal 6, a second double annular end 601, a stepped structure 602, an inner seal sleeve 7, a stepped groove structure 701, a small-diameter end 702, an outer seal sleeve 8, a retainer ring 9, an inner seal ring 10, a first axial gap 11, a second axial gap 12, a first radial gap 13, a second radial gap 14 and an inner seal ring 15.
Detailed Description
Referring to fig. 2 to 5, an inner sealing ring 15 is arranged between one side of the bearing 3 and the cover 4, an inner sealing sleeve 7 is arranged on the other side of the bearing, and an inner sealing ring 10 is arranged between the inner sealing sleeve 7 and the outer sealing sleeve 8.
The contact end of the inner sealing sleeve 7 and the bearing 3 is of a stepped groove structure 701, the maximum diameter end of the inner labyrinth seal I5 is embedded in the stepped groove structure 701, and the first double-ring-shaped end 501 of the inner labyrinth seal I5 is embedded in the second double-ring-shaped end 601 of the inner labyrinth seal II 6 and keeps a distance.
The aperture end of the inner labyrinth seal II 6 is a step-shaped structure 602, the step-shaped structure 602 is matched with the step-shaped structure part of the outer seal cover 8, and the axial clearance between the outer seal cover 8 and the inner seal cover 7 is larger than the radial clearance between the outer seal cover 8 and the inner seal cover 7. A first axial gap 11 and a second axial gap 12 are arranged between the outer sealing cover 8 and the inner sealing sleeve 7; a first radial gap 13 and a second radial gap 14 are arranged between the outer sealing cover 8 and the inner sealing ring 10, and the minimum radial gap between the outer sealing cover 8 and the inner sealing ring 10 is 0.3-0.5 mm. The first axial gap 11 is larger than the first radial gap 13 and the second radial gap 14, respectively, and the second axial gap is larger than the first radial gap 13 and the second radial gap 14, respectively.
A retainer ring 9 is arranged on the other side of the bearing 3, and the retainer ring 9 is clamped on the tool withdrawal groove; the other side of the retainer ring 9 is in contact with one end of the inner seal labyrinth II 6; the retainer ring 9 adopts a C-shaped structure.
The inner hole of the outer sealing cover 8 is in interference fit with the shaft 2; the hole of the inner sealing ring is in interference fit with the minimum diameter of the inner sealing sleeve.
The specific installation method comprises the following steps:
after the bearing 3 is pressed into the outer sealing cover 8, the inner labyrinth seal II 6 is tightly pressed, two (left and right, not shown) bearings 3 are pressed into the roller shell 1 and fixed with the shaft 2, the two bearings are positioned with the shaft 2 by the C-shaped check ring 9, before the two bearings are pressed into the roller shell 1, the hole of the inner sealing ring 10 and the small-diameter end 702 of the inner sealing sleeve 7 are assembled together through interference fit, then the second double-annular end 601 of the inner labyrinth seal II 6 is pressed into the first double-annular end 501 of the inner labyrinth seal I5, the small-diameter end of the inner labyrinth seal II 6 is attached to the C-shaped check ring 9, in the assembly of the inner sealing ring 10 and the inner sealing sleeve 7, the left end (shown in figure 2) of the inner sealing sleeve 7 is attached to the end surface of the bearing 3, and finally the outer sealing cover 8 is pressed into the right end (shown in figure 2) of the inner labyrinth seal II 5.
Claims (7)
1. The utility model provides a bearing roller of low damping seal structure, includes the roller shell, and the axle, the bearing, the shroud is provided with inboard sealing ring, its characterized in that between one side of bearing and the shroud: the other side of the bearing is provided with an inner sealing sleeve, an inner sealing ring is arranged between the inner sealing sleeve and the outer sealing sleeve, the contact end of the inner sealing sleeve and the bearing is of a stepped groove structure, the maximum diameter end of an inner labyrinth seal I is embedded in the stepped groove structure, a first double-ring end of the inner labyrinth seal I is embedded in a second double-ring end of the inner labyrinth seal II and keeps a distance, the aperture end of the inner labyrinth seal II is of a stepped structure, the stepped structure is matched with the stepped structure part of the outer sealing sleeve, and the axial clearance between the outer sealing sleeve and the inner sealing sleeve is larger than the radial clearance between the outer sealing sleeve and the inner sealing ring.
2. A carrier roller with a low-damping sealing structure according to claim 1, wherein: a check ring is arranged on the other side of the bearing and clamped on the tool withdrawal groove; the other side of the retainer ring is contacted with one end of the inner seal labyrinth II.
3. A idler roll with a low damping seal structure according to claim 2, characterised in that: the retainer ring adopts a C-shaped structure.
4. A carrier roller of a low-damping sealing structure according to claim 1, wherein: the minimum radial clearance between the outer sealing cover and the inner sealing ring is 0.3-0.5 mm.
5. A carrier roller with a low-damping sealing structure according to claim 1, wherein: the outer seal cover is in interference fit with the shaft.
6. A carrier roller with a low-damping sealing structure according to claim 1, wherein: the axial clearance between the outer sealing cover and the inner sealing sleeve is set to be two, and the radial clearance between the outer sealing cover and the inner sealing ring is set to be two.
7. A carrier roller with a low-damping sealing structure according to claim 1, wherein: the hole of the inner sealing ring is in interference fit with the minimum diameter of the inner sealing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920897259.9U CN210175750U (en) | 2019-06-14 | 2019-06-14 | Carrier roller with low-damping sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920897259.9U CN210175750U (en) | 2019-06-14 | 2019-06-14 | Carrier roller with low-damping sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210175750U true CN210175750U (en) | 2020-03-24 |
Family
ID=69837891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920897259.9U Active CN210175750U (en) | 2019-06-14 | 2019-06-14 | Carrier roller with low-damping sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210175750U (en) |
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2019
- 2019-06-14 CN CN201920897259.9U patent/CN210175750U/en active Active
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