CN216745386U - Nested combined sealing device for supporting roller bearing of rotary kiln - Google Patents
Nested combined sealing device for supporting roller bearing of rotary kiln Download PDFInfo
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- CN216745386U CN216745386U CN202123120693.2U CN202123120693U CN216745386U CN 216745386 U CN216745386 U CN 216745386U CN 202123120693 U CN202123120693 U CN 202123120693U CN 216745386 U CN216745386 U CN 216745386U
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- bearing
- supporting roller
- shaft sleeve
- cover
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Abstract
The utility model relates to a rotary kiln riding wheel bearing is with nested formula combination seal device, including riding wheel bearing, bearing end cover, riding wheel axle, axle sleeve, protection casing, fan, V-arrangement sealing washer, clearance adjustment backing plate, two lip kiln seal rings, protection casing end cover and lower part awl fill. The beneficial effects are as follows: the utility model discloses a device adopts two lip sealing washers, the complete sealed protection system is constituteed to the nested mode that sets up of V-arrangement sealing washer and protection casing, can effectively prevent the seepage of lubricating oil, and can prevent rainwater and dust infiltration riding wheel bearing's inside, sealed effect has been improved, can also realize retrieving the lubricating oil of throwing away the rotation of tow boat axle and recycle, not only purified the environment, and economic loss has been reduced, the fault rate of equipment has been reduced, the normal operating of rotary kiln equipment provides powerful guarantee, it is especially important today advocating green.
Description
Technical Field
The utility model relates to an equipment seal technical field especially relates to a rotary kiln riding wheel bearing is with nested formula combination sealing device.
Background
With the increasing demand of active lime, the equipment of the active lime rotary kiln is continuously developed and innovated, and the corresponding requirement on the sealing performance of the equipment is continuously improved and perfected. The supporting roller bearing is used for supporting the supporting roller shaft and the supporting roller connected with the supporting roller shaft, and the supporting roller is used for supporting the weight of the rotary part of the whole rotary kiln. The supporting roller bearing is a general name of a bearing base and a bearing upper cover of the supporting roller. The lubrication mode of the riding wheel shaft is thin oil lubrication, and the cavity of the bearing base is filled with lubricating oil.
The sealing of the idler bearing is critical to the overall operation of the rotary kiln plant. At present, a supporting roller bearing is mainly sealed by a framework oil seal, the supporting roller can axially slide in the running process of a kiln body, and long-time running can cause the sealing abrasion failure of a supporting roller shaft and oil leakage. Once oil leaks, and oil supplement is not found in time, the temperature of the riding wheel shaft is increased, and even the riding wheel shaft and the bearing bush are damaged, so that the production of the rotary kiln is stopped. The leaked lubricating oil can also corrode the concrete foundation of the rotary kiln to pollute the environment, and the lubricating oil is generally expensive, so that the direct economic loss is large. In addition, rainfall or external dust can also infiltrate into the bearing from the gap at the sealing position, so that oil product pollution is caused, and the lubricating effect is influenced.
SUMMERY OF THE UTILITY MODEL
For overcoming the prior art defect, the utility model provides a technical problem provides a rotary kiln riding wheel bearing is with nested formula combination sealing device, adopt two lip sealing washers, the complete sealed protection system is constituteed to V-arrangement sealing washer and protection casing nested mode that sets up, can effectively prevent the seepage of lubricating oil, and can prevent rainwater and dust infiltration riding wheel bearing's inside, sealed effect has been improved, can also realize retrieving the lubricating oil of throwing away the rotation of tug shaft and recycle, not only purify the environment, and economic loss has been reduced, the fault rate of equipment has been reduced, normal operating for rotary kiln equipment provides powerful guarantee, it is especially important today advocating green.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a nested combined sealing device for a rotary kiln supporting roller bearing comprises the supporting roller bearing, a bearing end cover, a supporting roller shaft, a shaft sleeve, a protective cover, a fan, a V-shaped sealing ring, a gap adjusting base plate, a double-lip kiln sealing ring, a protective cover end cover and a lower cone hopper, and is characterized in that the shaft sleeve is sleeved on the supporting roller shaft and penetrates through an opening of the supporting roller bearing to extend into the supporting roller bearing; a double-lip sealing ring is arranged in the bearing end cover, is sleeved on the shaft sleeve and is fixedly connected with the end face of the riding wheel bearing, and seals the opening of the riding wheel bearing; the two V-shaped sealing rings are arranged in a back-to-back manner, sleeved on the shaft sleeve and arranged close to the bearing end cover; the protective cover end cover is sleeved on the shaft sleeve and fixedly connected with the end face of the protective cover, the end face of the protective cover end cover is tightly attached to the V-shaped sealing ring, and the protective cover penetrates through the shaft sleeve and is fastened on the end face of the riding wheel bearing to cover the V-shaped sealing ring and the bearing end cover; the bottom of the protective cover is provided with a lower conical hopper communicated with an external pipeline; the two fans are respectively communicated with the protective cover through ventilation pipelines, and the access ports of the ventilation pipelines are located on the lower side of the central line of the protective cover.
The end face of the shaft sleeve extending into the interior of the riding wheel bearing is provided with an oil blocking cone, a spiral oil groove is machined in the outer surface of the shaft sleeve located in the interior of the riding wheel bearing, and the spiral direction is opposite to the rotating direction of the shaft sleeve.
The protective cover, the bearing end cover and the protective cover end cover are of an upper-lower split structure, and sealant is required to be coated at seams after installation.
Two observation ports are symmetrically arranged at the upper part of the protective cover.
The outer surfaces of the protective cover and the bearing end cover are all set to be conical surfaces.
Compared with the prior art, the beneficial effects of the utility model are that:
1) a complete sealing protection system is formed by nesting the double-lip sealing ring, the V-shaped sealing ring and the protective cover, so that the sealing effect is improved, and the leakage of lubricating oil can be effectively prevented;
2) because the riding wheel of the rotary kiln is obliquely arranged, the riding wheel shaft and the shaft sleeve thereof are also inclined, so that part of lubricating oil flowing to the upper surface of the shaft sleeve flows to the lower end from the high end of the riding wheel shaft and is gathered at the sealing ring, oil leakage is easy to occur, the fan blows air into the protective cover, micro-positive pressure in the protective cover can be realized, the pressure of the V-shaped sealing ring and the contact surface is increased, and tight adhesion can be realized, so that oil is prevented from seeping;
3) the fan blows air into the protective cover, and the temperature in the protective cover can be reduced, so that the temperatures of the riding wheel shaft and the riding wheel bearing are reduced, in addition, the lower conical hopper arranged at the bottom of the protective cover is communicated with an external pipeline, and the flowing liquid can be intensively recovered, so that the environment is purified, and the economic loss is reduced.
Drawings
FIG. 1 is a schematic front view of the structure principle of the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
fig. 3 is a schematic side view of the structure principle of the present invention.
In the figure: 1-riding wheel bearing 2-bearing end cover 3-riding wheel shaft 4-shaft sleeve 41-oil blocking cone 42-oil guide groove 5-protective cover 51-observation opening 6-blower 7-V-shaped sealing ring 8-gap adjusting backing plate 9-double-lip kiln sealing ring 10-protective cover end cover 11-lower cone hopper 12-riding wheel
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-3, the utility model relates to a rotary kiln riding wheel bearing is with nested formula combination sealing device, including riding wheel bearing 1, bearing end cover 2, riding wheel axle 3, axle sleeve 4, protection casing 5, fan 6, V-arrangement sealing washer 7, clearance adjustment backing plate 8, two lip kilns seal ring 9, protection casing end cover 10 and lower part awl fill 11, axle sleeve 4 suit is on riding wheel axle 3, passes riding wheel bearing 1 opening and stretches into inside riding wheel bearing 1; a double-lip sealing ring 9 is arranged in the bearing end cover 2, is sleeved on the shaft sleeve 4 and is fixedly connected with the end face of the riding wheel bearing 1, and seals an opening of the riding wheel bearing 1 to form first sealing; the two V-shaped sealing rings 7 are arranged in a back-to-back manner, sleeved on the shaft sleeve 4 and arranged close to the bearing end cover 2 to form a second seal; the protective cover end cover 10 is sleeved on the shaft sleeve 4 and fixedly connected with the end face of the protective cover 5, the end face of the protective cover end cover 10 is tightly attached to the V-shaped sealing ring 7, the protective cover 5 penetrates through the shaft sleeve 4 and is fastened on the end face of the riding wheel bearing 1 to cover the V-shaped sealing ring 7 and the bearing end cover 2, and a third seal is formed; the bottom of the protective cover 5 is provided with a lower conical hopper 11 which is communicated with an external pipeline and can intensively recycle and treat the liquid such as the flowing lubricating oil and the like; the number of the fans 6 is two, the fans are communicated with the protective cover 5 through ventilation pipelines respectively, and the access ports of the ventilation pipelines are located on the lower side of the central line of the protective cover 5.
The end face, extending into the interior of the riding wheel bearing 1, of the shaft sleeve 4 is provided with a spiral oil groove 41, lubricating oil is prevented from flowing to the outer side of the bearing, a spiral oil groove 42 is formed in the outer surface, located inside the riding wheel bearing 1, of the shaft sleeve 4, the spiral direction is opposite to the rotation direction of the shaft sleeve 4, and therefore the lubricating oil on the surface of the shaft sleeve 4 can be guided back in a reverse mode when the shaft sleeve 4 rotates.
The protective cover 5, the bearing end cover 2 and the protective cover end cover 10 are of an upper-lower split structure, and sealing glue is required to be smeared at seams after installation so as to guarantee the sealing effect of the protective cover.
Two observation ports 51 are symmetrically arranged at the upper part of the protective cover 5.
The outer surfaces of the protective cover 5 and the bearing end cover 2 are both set to be conical surfaces, so that oil liquid is collected conveniently.
The protective cover 5 is in a circular structure, and because oil leakage is mainly concentrated in the lower area of the circumference, the interface with the fan 6 is arranged on the lower part of the circumference.
Because the riding wheel 12 of the rotary kiln is obliquely arranged, the riding wheel shaft 3 and the shaft sleeve 4 are also oblique, so that part of lubricating oil flowing to the upper surface of the shaft sleeve 4 flows to the lower end from the high end and gathers at the V-shaped sealing ring 7 and the double-lip sealing ring 9, oil leakage is easy to occur, the fan 6 blows air into the protective cover 5, micro-positive pressure in the protective cover 5 can be realized, the pressure at the contact surface of the V-shaped sealing ring 7 with the bearing end cover 2 and the protective cover end cover 10 is increased, and tight adhesion can be realized, so that oil seepage is prevented.
The fan 6 blows air into the protective cover 5, the temperature in the protective cover 5 can be reduced, and therefore the temperature of the riding wheel shaft 3 and the temperature of the riding wheel bearing 1 can be reduced.
The two V-shaped sealing rings 7 are arranged in a back-to-back manner, so that space is saved, two-way sealing can be realized, the two V-shaped sealing rings 7 have different functions, the V-shaped sealing ring 7 on one side of the supporting wheel bearing 1 prevents lubricating oil in the supporting wheel bearing 1 from leaking out, and the V-shaped sealing ring 7 on the other side prevents external rainwater and dust from leaking into the protective cover 5; the sealing ring with the double V-shaped structure is sleeved on the surface of the shaft sleeve to form a plurality of blocking V-shaped ring surfaces, so that the axial flow of liquid flow can be effectively blocked, and the liquid flow is converged at the lower funnel 11, and is convenient to concentrate and recover.
The thickness of the gap adjusting base plate 8 can be adjusted according to the contact state of the contact surface of the V-shaped sealing ring 7 and the protective cover end cover 10, so that good contact sealing is guaranteed. The gap adjusting backing plate 7 is fixedly connected with the protective cover end cover 10 through bolts, and can be directly replaced outside, so that the operation is convenient.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (5)
1. A nested combined sealing device for a rotary kiln supporting roller bearing comprises the supporting roller bearing, a bearing end cover, a supporting roller shaft, a shaft sleeve, a protective cover, a fan, a V-shaped sealing ring, a gap adjusting base plate, a double-lip kiln sealing ring, a protective cover end cover and a lower cone hopper, and is characterized in that the shaft sleeve is sleeved on the supporting roller shaft and penetrates through an opening of the supporting roller bearing to extend into the supporting roller bearing; a double-lip sealing ring is arranged in the bearing end cover, is sleeved on the shaft sleeve and is fixedly connected with the end face of the riding wheel bearing, and seals the opening of the riding wheel bearing; the two V-shaped sealing rings are arranged in a back-to-back manner, sleeved on the shaft sleeve and arranged close to the bearing end cover; the protective cover end cover is sleeved on the shaft sleeve and fixedly connected with the end face of the protective cover, the end face of the protective cover end cover is tightly attached to the V-shaped sealing ring, and the protective cover penetrates through the shaft sleeve and is fastened on the end face of the supporting wheel bearing to cover the V-shaped sealing ring and the bearing end cover; the bottom of the protective cover is provided with a lower conical hopper communicated with an external pipeline; the two fans are respectively communicated with the protective cover through ventilation pipelines, and the access ports of the ventilation pipelines are located on the lower side of the central line of the protective cover.
2. The nested combined sealing device for the supporting roller bearing of the rotary kiln as claimed in claim 1, wherein the end face of the shaft sleeve extending into the supporting roller bearing is provided with an oil blocking cone, and the outer surface of the shaft sleeve located inside the supporting roller bearing is provided with a spiral oil groove, and the spiral direction is opposite to the rotation direction of the shaft sleeve.
3. The nested combined sealing device for the rotary kiln supporting roller bearing as claimed in claim 1, wherein the protective cover, the bearing end cover and the protective cover end cover are all of an up-down split structure, and after installation, the seam is coated with sealant.
4. The nested combination sealing device for the supporting roller bearing of the rotary kiln as claimed in claim 1, wherein the upper part of the protective cover is symmetrically provided with two observation ports.
5. The nested combination sealing device for the supporting roller bearing of the rotary kiln as claimed in claim 1, wherein the outer surfaces of the protective cover and the bearing end cover are provided with conical surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123120693.2U CN216745386U (en) | 2021-12-13 | 2021-12-13 | Nested combined sealing device for supporting roller bearing of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123120693.2U CN216745386U (en) | 2021-12-13 | 2021-12-13 | Nested combined sealing device for supporting roller bearing of rotary kiln |
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| Publication Number | Publication Date |
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| CN216745386U true CN216745386U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123120693.2U Active CN216745386U (en) | 2021-12-13 | 2021-12-13 | Nested combined sealing device for supporting roller bearing of rotary kiln |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111327A (en) * | 2021-12-13 | 2022-03-01 | 中冶焦耐(大连)工程技术有限公司 | Nested combined sealing device for supporting roller bearing of rotary kiln |
-
2021
- 2021-12-13 CN CN202123120693.2U patent/CN216745386U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111327A (en) * | 2021-12-13 | 2022-03-01 | 中冶焦耐(大连)工程技术有限公司 | Nested combined sealing device for supporting roller bearing of rotary kiln |
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