CN112577315A - Sealing ring for rotary kiln riding wheel bearing set and use method - Google Patents
Sealing ring for rotary kiln riding wheel bearing set and use method Download PDFInfo
- Publication number
- CN112577315A CN112577315A CN202011579885.7A CN202011579885A CN112577315A CN 112577315 A CN112577315 A CN 112577315A CN 202011579885 A CN202011579885 A CN 202011579885A CN 112577315 A CN112577315 A CN 112577315A
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- CN
- China
- Prior art keywords
- sealing ring
- riding wheel
- aluminum
- rotary kiln
- connecting piece
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/22—Rotary drums; Supports therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
Abstract
The invention relates to a sealing ring for a rotary kiln riding wheel bearing set and a use method thereof. The invention has the function of preventing the lubricating oil in the bearing seat from leaking. In order to deal with the structure and the use specificity of the rotary kiln riding wheel bearing set. The purpose that the lower sealing ring is immersed in oil, the sealing ring needs to be cut when being installed, lubricating oil impacts the lower sealing ring in the flowing-down process, and a large-diameter spring of the supporting roller shaft is difficult to tightly seal in the circumferential full range and the like is achieved.
Description
Technical Field
The invention relates to the technical field of rotary kiln riding wheel bearing set sealing, in particular to a sealing ring for a rotary kiln riding wheel bearing set and a using method thereof.
Background
The rotary kiln riding wheel bearing set is arranged at the lower part of the rotary kiln, and the supporting cylinder body, the refractory material in the supporting cylinder body and the kiln material are arranged in the supporting cylinder body. The transmission device drives the rotary kiln to rotate on the supporting wheel bearing set. The central line of the rotary kiln has a certain inclination angle with the horizontal plane, and the feeding end is higher than the discharging end. The material in the rotary kiln completes the moving process from the feeding end to the discharging end of the kiln by using the rotation of the rotary kiln.
Fig. 1-2 are schematic structural views of the riding wheel bearing set. The bearing block 1 is internally fixed with a sliding bearing 6. Two slide bearings 6 support one idler shaft 4. The riding wheel 5 is arranged on the riding wheel shaft 4. The riding wheel 5 bears the weight of the rotary kiln. The idler 5 rotates together with the idler shaft 4 on the slide bearing 6. In order for the idler shaft 4 and the sliding bearing 6 to operate well, they need to be lubricated. According to the nature of the movement, the oil scoop 2 is used for scooping oil for lubrication at low speed and heavy load. The cavity at the lower part of the bearing seat 1 stores lubricating oil with a certain amount of oil, and the oil level is higher than the height of the oil scoop 2 rotating to the lower part. The rotatory area of oil dipper 2 ladles out oil and promotes to upper portion, on the oil drain of high point divides oil pan 3, divides oil pan 3 to make even the flowing to bearing roller 4 of oil, and bearing roller 4 utilizes the rotation of self on slide bearing 6, goes into between bearing roller 4 and slide bearing 6 the oil pressure, plays the lubrication action.
The sealing is realized by lubrication, and as shown in figures 3-7, the sealing structure of the prior art idler shaft is shown, and the oil leakage position of the idler bearing group is the annular gap between the idler shaft 4 and the bearing seat 1. The sealing structure uses the bearing seat 1 as a back plate, an annular space is formed between the sealing ring gland 9 and the back plate, and a wool felt sealing ring 11 or an oil-resistant sealing ring 12 is placed inside the annular space. When the wool felt sealing ring 11 is placed, a metal pin shaft is additionally arranged to play a role in supporting the framework. The wool felt sealing ring 11 needs the spring 10 to compress in the circumferential direction, and the lower lip of the oil-resistant sealing ring 12 also needs the spring 10 to compress so as to play a sealing role. Finally, the bearing seat 1 and the sealing ring gland 9 are fixed together by bolts 8. The seal may be fitted into one end of the idler shaft 4 for the first installation and a complete seal ring may be used. The replacement of the sealing ring cannot later open the bearing seat and can only be carried out as shown in fig. 4 and 6 by the cut-out 18. The notch 18 is positioned uppermost.
The sealing between the idler shaft and the bearing block has the following difficulties:
firstly, the oil distributing disc 3 guides the oil to a position close to the riding wheel 5 in the oil distributing process, and the oil reaches the sealing ring along the arc line of the shaft in the downstream process.
Secondly, because the rotary kiln is the slope arrangement, so the riding wheel bearing group also can be the slope arrangement, and high-end bearing frame 1 can be ladled out oil for guaranteeing oil scoop 2, and the oil level height may be higher than the sealing washer lower limb.
Thirdly, because the rotary kiln is operated continuously, the sealing ring can not be integrally replaced in the operation process, and only can be cut off and then bonded, and the sealing effect is poor.
Fourthly, the sealing ring is difficult to completely attach in the circumferential range due to the large diameter of the supporting wheel shaft of the rotary kiln. At present, the spring is hooped tightly, and due to the fact that the diameter of the spring is too large, the spring is loose and uneven on the circumference, and oil leakage is serious.
Therefore, the sealing ring for the rotary kiln riding wheel bearing set is provided, the influence of cutting and bonding on the sealing ring is avoided, and the sealing effect of a part of oil-immersed part can be improved. Reduce the leakage of the lubricating oil and have obvious environmental protection value and economic value.
Disclosure of Invention
The invention provides a sealing ring for a rotary kiln riding wheel bearing set and a use method thereof, which are used for preventing lubricating oil in a bearing seat from leaking. In order to deal with the structure and the use specificity of the rotary kiln riding wheel bearing set. The purpose that the lower sealing ring is immersed in oil, the sealing ring needs to be cut when being installed, lubricating oil impacts the lower sealing ring in the flowing-down process, and a large-diameter spring of the supporting roller shaft is difficult to tightly seal in the circumferential full range and the like is achieved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a rotary kiln riding wheel sealing washer for bearing group, includes steel skeleton, aluminium skeleton, resistant oil rubber, aluminium connecting piece, the steel skeleton is the major arc structure, the aluminium skeleton is fixed at the both ends of steel skeleton, resistant oil rubber fixes the inboard at steel skeleton and aluminium skeleton, the steel skeleton parcel is in the lower part of tow boat axle, the aluminium skeleton parcel is on the upper portion of riding boat axle, and the tip of two aluminium skeletons is relative and connect fixedly through the aluminium connecting piece.
The length of the steel skeleton is 18-22 degrees larger than half perimeter.
The sealing ring is fixed outside the bearing cover through a sealing ring gland, and a groove matched with the aluminum connecting piece is formed in the sealing ring gland to limit and fix the aluminum connecting piece and the sealing ring.
And the inner side of the oil-resistant rubber is provided with a solid bulge matched with the shaft shoulder at the sealing position of the riding wheel shaft in shape.
The aluminum connecting piece is integrally arc-shaped, the cross section of the aluminum connecting piece is L-shaped, the L-shaped vertical plate is provided with the inserting pin, the end part of the aluminum framework is provided with a connecting hole, the end parts of the two aluminum frameworks are in butt joint, and the connecting hole is inserted on the inserting pin of the aluminum connecting piece.
A method for using a sealing ring for a rotary kiln riding wheel bearing set comprises the steps that before the sealing ring is installed, two aluminum frameworks are straight, the sealing ring is sleeved on a riding wheel shaft, a steel framework is wrapped on the lower portion of the riding wheel shaft, the aluminum frameworks are wrapped on the upper portion of the riding wheel shaft by the aid of flexibility of the aluminum frameworks, the end portions of the two aluminum frameworks are fixedly connected through an aluminum connecting piece, a sealing ring gland is installed on a bearing seat, and the sealing ring is radially positioned through a groove in the sealing ring gland.
Compared with the prior art, the invention has the beneficial effects that:
1) the sealing ring for the rotary kiln riding wheel bearing set has the advantages that the pressure on rubber is uniform in the contact range of the sealing ring and oil, the sealing effect is good, and the leakage of lubricating oil is avoided. Not only saves lubricating oil, but also avoids oil pollution.
2) The upper part of the sealing ring for the rotary kiln riding wheel bearing set is inserted and compressed, the structure is simple and compact, the sealing ring is convenient to replace quickly, and the original maintenance time of installation, bonding and cultivation is greatly shortened.
3) The sealing ring for the rotary kiln riding wheel bearing set is provided with the solid bulges on the inner side of the oil-resistant rubber, is similar to a hard lip structure, does not have a thin surface needing to be compressed, and can prolong the service life of the sealing ring.
Drawings
FIG. 1 is a front view of a riding wheel bearing set;
FIG. 2 is a cross-sectional view of a riding wheel bearing set A-A;
FIG. 3 is a detailed view of a riding wheel bearing set I (prior art);
FIG. 4 is a prior art wool felt seal view;
FIG. 5 is a prior art oil-resistant seal diagram;
FIG. 6 is a side view of a prior art oil resistant seal ring;
FIG. 7 is a cross-sectional view B-B of FIG. 5;
FIG. 8 is a view of a seal ring for a bearing set of a riding wheel of a rotary kiln according to the present invention;
FIG. 9 is a top view of a seal ring for a bearing set of a rotary kiln riding wheel according to the present invention;
FIG. 10 is a view from the C-C of FIG. 8;
FIG. 11 is a schematic view of an aluminum connector;
FIG. 12 is a detailed view of the idler bearing set I (invention);
fig. 13 is a schematic view of a seal gland.
In the figure: 1. the oil-resistant bearing comprises a bearing seat, 2 parts of an oil scoop, 3 parts of an oil distributing disc, 4 parts of a supporting wheel shaft, 5 parts of a supporting wheel, 6 parts of a sliding bearing, 7 parts of a metal pin shaft, 8 parts of a bolt, 9 parts of a sealing ring gland, 10 parts of a spring, 11 parts of a wool felt sealing ring, 12 parts of an oil-resistant sealing ring, 13 parts of a sealing ring (the invention), 14 parts of an aluminum framework, 15 parts of a steel framework, 16 parts of oil-resistant rubber, 17 parts of an aluminum connecting piece, 18 parts of a notch, 19 parts of a groove, 20 parts of an.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings:
as shown in fig. 8-13, the sealing ring for the supporting roller bearing assembly of the rotary kiln comprises a steel skeleton 15, an aluminum skeleton 14, oil-resistant rubber 16 and an aluminum connector 17, wherein the steel skeleton 15 is of a major arc structure, the aluminum skeleton 14 is fixed at two ends of the steel skeleton 15, the oil-resistant rubber 16 is fixed at the inner sides of the steel skeleton 15 and the aluminum skeleton 14, the steel skeleton 15 is wrapped at the lower part of the supporting roller shaft 4, the aluminum skeleton 14 is wrapped at the upper part of the supporting roller shaft 4, and the end parts of the two aluminum skeletons 14 are opposite and are connected and fixed through the aluminum connector 17.
The length of the steel skeleton 15 is larger than the half perimeter of 18-22 degrees, and the sealing in the whole range that oil sliding from the upper part can contact the sealing ring 13 is ensured.
The sealing ring 13 is fixed outside the bearing cover 1 through a sealing ring gland 9, a groove 19 matched with the aluminum connecting piece 17 is formed in the sealing ring gland 9, and the aluminum connecting piece 17 and the sealing ring 13 are limited and fixed.
And a solid bulge matched with the shaft shoulder at the sealing position of the riding wheel shaft 4 in shape is arranged on the inner side of the oil-resistant rubber 16.
The aluminum connecting piece 17 is integrally arc-shaped, the section of the aluminum connecting piece 17 is L-shaped, the L-shaped vertical plate 21 is provided with the inserting pin 20, the end part of the aluminum framework 14 is provided with the connecting hole, the end parts of the two aluminum frameworks 14 are in butt joint, and the connecting hole is inserted into the inserting pin 20 of the aluminum connecting piece 17.
The sealing ring 13 is composed of a metal framework and oil-resistant rubber, the lower metal framework adopts a steel framework 15, and the elasticity of the steel framework 15 is utilized to ensure that the oil-resistant rubber 16 is completely attached to the riding wheel shaft 4; the oil-resistant rubber 16 adopts a hard lip-shaped structure bulge, and the elastic force of the steel skeleton 15 is uniformly transmitted to the lip head, so that the deformation of the oil-resistant rubber reaches the sealing effect; the upper framework adopts an aluminum framework 14, and can be bent straight and bent for installing the sealing ring 13; and an aluminum connecting piece 17 is adopted to connect two ends of the sealing ring 13 for the riding wheel bearing group. The upper protruding part of the aluminum connecting piece 17 is matched with the upper groove 19 of the sealing ring gland 9, which plays a role of fixing the sealing ring 13, prevents the sealing ring 13 from sliding in the circumferential direction, and prevents the aluminum framework 14 with poor sealing effect from rotating to the lower part.
A method for using a sealing ring for a rotary kiln riding wheel bearing set comprises the steps that before the sealing ring 13 is installed, two aluminum frameworks 14 are straight, the sealing ring 13 is sleeved on a riding wheel shaft 4, a steel framework 15 is wrapped on the lower portion of the riding wheel shaft 4, the aluminum frameworks 14 are wrapped on the upper portion of the riding wheel shaft 4 through the flexibility of the aluminum frameworks 14, the end portions of the two aluminum frameworks 14 are fixedly connected through an aluminum connecting piece 17, a sealing ring gland 9 is installed on a bearing seat 1, and the sealing ring 13 is radially positioned through a groove 19 in the sealing ring gland 9.
Since the lower portion of the seal ring 13 may be immersed in oil, a steel skeleton 15 is used as a base member. An oil-resistant rubber 16 is adhered to the steel skeleton 15. The steel skeleton 15 has good elasticity, and can ensure the uniform contact between the oil-resistant rubber 16 and the riding wheel shaft 4. The oil-resistant rubber 16 is made into a bulge with a hard lip structure as shown in fig. 10, and can be tightly attached to the shaft surface without pressing force of the spring 10, so that a sealing effect is achieved.
The remainder of the skeleton is an aluminum skeleton 14 that is easily bent. An oil resistant rubber 16 is also adhered to the aluminum skeleton 14 for sealing. The aluminum framework 14 can be completely straight so as to install the sealing ring 13 for the bearing set of the supporting wheel of the rotary kiln, and the sealing ring 13 can be bent along the supporting wheel shaft after installation, and the aluminum connecting piece 17 is inserted for connecting two ends of the sealing ring 13 after butt joint.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a rotary kiln riding wheel sealing washer for bearing group which characterized in that, includes steel skeleton, aluminium skeleton, resistant oil rubber, aluminium connecting piece, the steel skeleton is the major arc structure, the aluminium skeleton is fixed at the both ends of steel skeleton, resistant oil rubber fixes the inboard at steel skeleton and aluminium skeleton, the steel skeleton parcel is in the lower part of tug shaft, the upper portion at the riding wheel axle is wrapped up in to the aluminium skeleton, and the tip of two aluminium skeletons is relative and connects fixedly through the aluminium connecting piece.
2. The seal ring for the rotary kiln riding wheel bearing set as claimed in claim 1, wherein the length of the steel skeleton is greater than half circumference by 18-22 °.
3. The sealing ring for the rotary kiln riding wheel bearing set as claimed in claim 1, wherein the sealing ring is fixed outside the bearing cap through a sealing ring gland, and the sealing ring gland is provided with a groove adapted to the aluminum connecting piece to limit and fix the aluminum connecting piece and the sealing ring.
4. The sealing ring for the rotary kiln riding wheel bearing set as claimed in claim 1, wherein the inner side of the oil-resistant rubber is provided with a solid bulge matched with the shape of a shaft shoulder at the sealing position of the riding wheel shaft.
5. The sealing ring for the rotary kiln riding wheel bearing set as claimed in claim 1, wherein the aluminum connecting piece is arc-shaped as a whole, the cross section of the aluminum connecting piece is L-shaped, the L-shaped vertical plate is provided with an inserting pin, the end parts of the aluminum frameworks are provided with connecting holes, the end parts of the two aluminum frameworks are butted and the connecting holes are inserted on the inserting pin of the aluminum connecting piece.
6. A use method of a sealing ring for a rotary kiln riding wheel bearing set is characterized in that before the sealing ring is installed, two aluminum frameworks are straight, the sealing ring is sleeved on a riding wheel shaft, a steel framework is wrapped at the lower part of the riding wheel shaft, the aluminum frameworks are wrapped at the upper part of the riding wheel shaft by utilizing the flexibility of the aluminum frameworks, the end parts of the two aluminum frameworks are fixedly connected through an aluminum connecting piece, a sealing ring gland is installed on a bearing seat, and the sealing ring is radially positioned through a groove in the sealing ring gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579885.7A CN112577315A (en) | 2020-12-28 | 2020-12-28 | Sealing ring for rotary kiln riding wheel bearing set and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011579885.7A CN112577315A (en) | 2020-12-28 | 2020-12-28 | Sealing ring for rotary kiln riding wheel bearing set and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112577315A true CN112577315A (en) | 2021-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011579885.7A Pending CN112577315A (en) | 2020-12-28 | 2020-12-28 | Sealing ring for rotary kiln riding wheel bearing set and use method |
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| CN (1) | CN112577315A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128245A (en) * | 2023-10-18 | 2023-11-28 | 宜兴市环宇轴瓦制造有限公司 | Universal ton kiln supporting wheel bearing assembly with dustproof lubrication structure |
| CN117128245B (en) * | 2023-10-18 | 2024-04-30 | 宜兴市环宇轴瓦制造有限公司 | Universal ton kiln supporting wheel bearing assembly with dustproof lubrication structure |
-
2020
- 2020-12-28 CN CN202011579885.7A patent/CN112577315A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117128245A (en) * | 2023-10-18 | 2023-11-28 | 宜兴市环宇轴瓦制造有限公司 | Universal ton kiln supporting wheel bearing assembly with dustproof lubrication structure |
| CN117128245B (en) * | 2023-10-18 | 2024-04-30 | 宜兴市环宇轴瓦制造有限公司 | Universal ton kiln supporting wheel bearing assembly with dustproof lubrication structure |
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