CN215337646U - Sealing structure for supporting roller of rotary kiln - Google Patents
Sealing structure for supporting roller of rotary kiln Download PDFInfo
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- CN215337646U CN215337646U CN202121788282.8U CN202121788282U CN215337646U CN 215337646 U CN215337646 U CN 215337646U CN 202121788282 U CN202121788282 U CN 202121788282U CN 215337646 U CN215337646 U CN 215337646U
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- oil
- oil seal
- riding wheel
- rotary kiln
- seal piece
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- Muffle Furnaces And Rotary Kilns (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model relates to a sealing structure for a riding wheel of a rotary kiln, which comprises an oil seal piece sleeved on a riding wheel shaft, wherein one side end face of the oil seal piece is fixedly connected to the side wall of the riding wheel of the rotary kiln; a hollow oil seal cavity is arranged in the oil seal piece, a plurality of oil seals are axially arranged on the inner side wall of the oil seal cavity, and the opening oil seal is in line contact with the riding wheel shaft; an oil return hole is formed in the bottom of the oil seal cavity close to the outer end face; this practicality utilizes the return port to retrieve the lubricating oil that oozes in the oil blanket in the outside, makes things convenient for the quick collection of staff to reveal lubricating oil, and the effectual frequent dismouting of avoiding oil seal spare can realize long-term the use.
Description
Technical Field
The utility model belongs to the technical field of sealing structures, and particularly relates to a sealing structure for a riding wheel of a rotary kiln.
Background
The contact type sealing product generally has high requirements on the precision of various matching dimensions of equipment, ensures that the equipment is in a stable running state for a long time, and ensures that a sealing lip of an oil seal is abraded to a certain extent after long-time running, so that the following performance of the oil seal is poor, and leakage is generated; meanwhile, the sealing devices of the equipment are all arranged in a whole circle, which causes great trouble to disassembly and assembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a sealing structure of an external rotary kiln riding wheel.
The utility model realizes the purpose through the following technical scheme:
a sealing structure for a riding wheel of a rotary kiln comprises an oil seal piece sleeved on a riding wheel shaft, wherein one end face of the oil seal piece is fixedly connected to the side wall of the riding wheel of the rotary kiln; a hollow oil seal cavity is arranged in the oil seal piece, a plurality of oil seals are axially arranged on the inner side wall of the oil seal cavity, and the opening oil seal is in line contact with the riding wheel shaft; and an oil return hole is formed in the bottom of the oil seal cavity close to the outer end face.
As a further optimization scheme of the utility model, a bonding mode is adopted between the oil seal piece and the side wall of the kiln riding wheel.
As a further optimization scheme of the utility model, a flange is arranged at the periphery of one side of the oil seal piece close to the kiln riding wheel, and the flange is connected with the side wall of the kiln riding wheel through a screw.
As a further optimization scheme of the utility model, an embedded groove is arranged on the end face of the oil seal part close to one side of the kiln riding wheel, and a sealing ring is embedded in the embedded groove.
As a further optimization scheme of the utility model, an oil filling hole is arranged at the top of the oil seal cavity between the adjacent oil seals.
As a further optimization scheme of the utility model, the oil seal part is formed by mutually splicing a first oil seal part and a second oil seal part, the oil injection hole is arranged on the first oil seal part, and the oil return hole is arranged on the second oil seal part.
As a further optimization scheme of the utility model, the oil seals all adopt open oil seals, and the openings of the oil seals are back to the oil return holes; the opening oil seal is provided with a spring groove close to the riding wheel shaft, and a self-tightening spring is sleeved in the spring groove.
The utility model has the beneficial effects that:
(1) according to the utility model, the leaked lubricating oil in the oil seal at the outermost side is recovered by the oil return hole, so that the worker can conveniently and quickly collect the leaked lubricating oil, frequent disassembly and assembly of the oil seal piece are effectively avoided, and long-term use can be realized;
(2) the oil seals are all open type oil seals, can be quickly disassembled and assembled on the riding wheel shaft, and can play a role in automatic compensation by using the action of a self-tightening spring after adopting the oil seal with the self-tightening spring, so that a good sealing effect is always kept;
(3) through the intracavity oiling between adjacent oil blanket for trailing axle can have better lubricated effect when the operation, and the oil blanket in the outside is used for dustproof simultaneously, and inboard oil blanket is arranged in carrying out the shutoff to the lubricating oil in the organism, and dual shutoff is difficult for letting the direct outside of revealing of lubricating oil in the organism.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention
FIG. 2 is a schematic structural view of embodiment 2 of the present invention
FIG. 3 is a schematic view of the structure of the oil seal of the present invention
In the figure: 1. an oil seal; 11. an oil seal cavity; 12. oil sealing; 121. a spring slot; 122. a self-tightening spring; 13. a flange; 14. a screw; 15. caulking grooves; 16. a seal ring; 2. a kiln riding wheel; 21. a trailing axle; 31. a first oil seal; 311. an oil filler hole; 32. a second oil seal; 321. and an oil return hole.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Detailed description of the preferred embodiment 1
As shown in fig. 1 and 3, the sealing structure for the riding wheel of the rotary kiln comprises an oil seal member 1 sleeved on a riding wheel shaft, wherein the oil seal member 1 comprises an oil seal cavity 11 and a flange 13 arranged on a skirt edge at the end part of the oil seal cavity 11; a plurality of screws 14 are arranged on the flange 13, and during assembly, the oil seal piece is fixedly connected to the side wall of the kiln riding wheel 2 through the screws 14;
in order to improve the sealing effect between the oil seal piece and the kiln riding wheel, an embedded groove is arranged on the end face of the oil seal piece 1 close to one side of the kiln riding wheel 2, and a sealing ring 16 is embedded in the embedded groove 15;
a hollow oil seal cavity 11 is arranged in the oil seal piece 1, two oil seals 12 are axially arranged on the inner side wall of the oil seal cavity 11, in order to reduce the friction force between the oil seals and a tug shaft, the oil seals 12 are in line contact with a trunnion shaft 21 of the kiln trunnion wheel 2, and a preferable multi-line contact structure can be arranged, so that the sealing requirement is met, and the friction force between the oil seals and the trunnion shaft can be reduced;
furthermore, the oil seals 12 all adopt open oil seals, and the opening of the oil seal 12 faces away from the oil return hole 321; the TC framework oil seal is preferably adopted, the oil seal 12 of the structure is provided with the spring groove 121, the self-tightening spring 122 is sleeved in the spring groove 121, when the oil seal runs for a long time, the sealing contact line surface is abraded to a certain extent, so that the following performance of a sealing lip is poor, but after the TC framework oil seal is adopted, the automatic compensation effect can be achieved by utilizing the action of the self-tightening spring, and a good sealing effect is always kept;
an oil filling hole 311 is formed in the top of the oil seal cavity 11 between the adjacent oil seals 12, and lubricating grease is filled between the two oil seals, so that the oil seal cavity plays a role in oil separation on one hand, and can play a role in sealing and lubricating on the other hand; meanwhile, an oil return hole 321 is formed in the bottom wall of the inner side face of the oil seal cavity 11, and the oil return hole 321 is formed between the end part of the oil seal cavity 11 and the oil seal 12 close to the end part; when part of oil leaks along the outermost oil seal, leaked oil can be collected through the oil return hole, and when the oil-sealed oil box is used, a pipeline can be connected to the oil return hole, so that the oil flows into the oil return box, the oil seal is effectively prevented from being frequently disassembled and assembled, and the effect of long-term use can be realized;
the oil seal member 1 comprises a first oil seal member 31 and a second oil seal member 32, the two structures are basically the same as each other, when in use, the first oil seal member 31 and the second oil seal member 32 are respectively placed on the trunnion shaft 21 of the kiln trunnion wheel 2, and then glue is applied to the opposite end faces to enable the two parts to be combined into a whole circle, namely the oil seal member 1; and the oil hole 311 is provided on the first oil seal 31 and the oil return hole 321 is provided on the second oil seal 32.
Specific example 2
As shown in fig. 2, a sealing structure for a rotary kiln riding wheel is different from the technical solution of the specific embodiment 1 in that a bonding manner is adopted between the oil seal member 1 in the embodiment 2 and the side wall of the kiln riding wheel 2, so that a structure such as a sealing ring is not required to be arranged, and an oil seal 12 is axially arranged on the inner side wall of an oil seal cavity 11; the scheme has the advantages of simple structure, simple assembly mode, low requirement on sealing grade and suitability for equipment with small axial space.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (7)
1. A sealing structure for a riding wheel of a rotary kiln is characterized by comprising an oil seal piece (1) sleeved on a riding wheel shaft, wherein one side end face of the oil seal piece is fixedly connected to the side wall of a riding wheel (2) of the rotary kiln; a hollow oil seal cavity (11) is arranged in the oil seal piece (1), a plurality of oil seals (12) are axially arranged on the inner side wall of the oil seal cavity (11), and the oil seals (12) are in line contact with a riding wheel shaft (21) of the kiln riding wheel (2); and an oil return hole (321) is formed in the bottom wall of the inner side face of the oil seal cavity (11), and the oil return hole (321) is formed between the end part of the oil seal cavity (11) and an oil seal (12) close to the end part.
2. A sealing structure for a riding wheel of a rotary kiln as claimed in claim 1, wherein: and a bonding mode is adopted between the oil seal piece (1) and the side wall of the kiln riding wheel (2).
3. A sealing structure for a riding wheel of a rotary kiln as claimed in claim 1, wherein: the periphery of the oil seal piece (1) close to one side of the kiln riding wheel (2) is provided with a flange (13), and the flange (13) is connected with the side wall of the kiln riding wheel (2) through a screw (14).
4. A sealing structure for a riding wheel of a rotary kiln as claimed in claim 3, wherein: an embedded groove (15) is formed in the end face, close to one side of the kiln supporting wheel (2), of the oil seal piece (1), and a sealing ring (16) is embedded in the embedded groove (15).
5. A sealing structure for a riding wheel of a rotary kiln according to any one of claims 1 to 4, characterized in that: and an oil filling hole (311) is formed in the top of the oil seal cavity (11) between the adjacent oil seals (12).
6. The sealing structure for the riding wheel of the rotary kiln as claimed in claim 5, wherein: the oil seal piece (1) is formed by mutually splicing a first oil seal piece (31) and a second oil seal piece (32), the oil filling hole (311) is formed in the first oil seal piece (31), and the oil return hole (321) is formed in the second oil seal piece (32).
7. The sealing structure for the riding wheel of the rotary kiln as claimed in claim 6, wherein: the oil seals (12) are all open oil seals, and the openings of the oil seals (12) are back to the oil return holes (321); and a spring groove (121) is formed in the oil seal (12), and a self-tightening spring (122) is sleeved in the spring groove (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121788282.8U CN215337646U (en) | 2021-08-03 | 2021-08-03 | Sealing structure for supporting roller of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121788282.8U CN215337646U (en) | 2021-08-03 | 2021-08-03 | Sealing structure for supporting roller of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215337646U true CN215337646U (en) | 2021-12-28 |
Family
ID=79575049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121788282.8U Active CN215337646U (en) | 2021-08-03 | 2021-08-03 | Sealing structure for supporting roller of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215337646U (en) |
-
2021
- 2021-08-03 CN CN202121788282.8U patent/CN215337646U/en active Active
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