CN211757621U - Sealed supporting roller device - Google Patents
Sealed supporting roller device Download PDFInfo
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- CN211757621U CN211757621U CN201921792520.5U CN201921792520U CN211757621U CN 211757621 U CN211757621 U CN 211757621U CN 201921792520 U CN201921792520 U CN 201921792520U CN 211757621 U CN211757621 U CN 211757621U
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Abstract
The utility model discloses a sealed supporting roll device, which comprises a supporting roll and a bearing box; the supporting roller comprises a roller body and roller shafts positioned at two ends of the roller body, and thrust rings are sleeved on the roller shafts; a bearing used for fixing the roll shaft is arranged in the bearing box, and an annular gland is arranged on one side, close to the roll body, of the bearing; an oil retainer ring is sleeved on the gland, and an annular side edge arranged along the edge is arranged on one side of the oil retainer ring close to the roller body; the gland inboard is equipped with the seal groove that is used for placing the oil blanket part, be equipped with the oil blanket part in the seal groove. The utility model discloses a backing roll device is equipped with special oil scraper ring and oil blanket part, and the two combined action can realize absolute seal almost, thereby has greatly avoided rolling oil to get into the problem that the bearing box leads to lubricated bad, burn out the bearing, and the security is higher, ensures rolling mill device and normally works.
Description
Technical Field
The utility model relates to a rolling mill technical field, more specifically relates to a sealed backing roll device.
Background
The rolling mill device is generally provided with a supporting roll device, the supporting roll device comprises a supporting roll and a bearing box for mounting the supporting roll, the supporting roll is used for bearing the rolling force brought by the working roll, and meanwhile, the working roll drives the supporting roll to rotate at a high speed when rotating at a high speed. During the working process of the working roll and the supporting roll, heat is generated, and a large amount of rolling oil is needed for cooling. The initial temperature of the rolling oil is generally 35-40 ℃, and the rolling oil flows out of the supporting roll to reach about 60 ℃, so that the whole supporting roll surface is cooled. The rolling oil is controlled through a spraying system, the rolling oil passes through a spraying beam, the beam is filled with a row of spray heads, the rolling oil is sprayed on the surface of a supporting roller through the spray heads, and the rolling oil is blocked by a working roller and the supporting roller and can flow from the two sides of the supporting roller.
The roll shafts at the two ends of the support roll are typically sleeved with thrust rings and then installed in the bearing housing, the thrust rings being located between the support roll and the bearing housing, the thrust rings being hot rolled onto the support roll. In the existing rolling mill device, the gap between the thrust ring and the bearing box is enlarged due to abrasion, and large-flow rolling oil in the production process flows to the thrust ring at two sides of the supporting roller and flows into the bearing box through the gap. After rolling oil enters a bearing box, lubricating oil in oil-gas lubrication, such as 220 # heavy closed gear oil, can be diluted, poor lubrication and temperature rise are caused, and a bearing is burnt out. In 2018, in a rolling mill device of Nippon Dongyang YouAixijie refined foil Co., Ltd, equipment fire disaster is caused because rolling oil enters a bearing box.
Therefore, it is necessary to design a supporting roller seal mounting mechanism which prevents rolling oil from entering the bearing housing and has higher safety.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome above-mentioned prior art rolling oil get into the bearing box and lead to the defect that the bearing is lubricated bad, burns out the bearing, provide a sealed backing roll device, thereby the backing roll device who provides has avoided rolling oil to get into the bearing box greatly and has lead to lubricated bad, the problem of burning out the bearing, the security is higher, guarantee rolling mill device normally works.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a sealed supporting roller device comprises a supporting roller and a bearing box; the supporting roller comprises a roller body and roller shafts positioned at two ends of the roller body, and thrust rings are sleeved on the roller shafts;
the bearing box comprises a bearing box main body and a bearing which is arranged in the bearing box main body and used for fixing the roller shaft, the bearing is sleeved on the roller shaft, one side of the bearing, which is close to the roller body, is provided with an annular gland, and the gland is sleeved on the thrust ring;
an oil retainer ring is sleeved on the gland, one side of the oil retainer ring close to the roller body is provided with an annular side edge arranged along the edge, and the annular side edge is abutted against the end face of the roller body and prevents rolling oil from flowing to the bearing;
the inner side of the gland is provided with a sealing groove, and an oil seal component is arranged in the sealing groove.
The oil deflector ring can be made of elastic and wear-resistant materials. The thrust ring may be made of 45 gauge steel. The supporting roller can be made of 9Cr2Mo material.
When the supporting roller device works, one side of the oil retainer abuts against the end face of the roller body, so that rolling oil is prevented from flowing to the bearing. Meanwhile, the oil seal component on the inner side of the gland can seal the gap between the thrust ring and the gland, and a large amount of external rolling oil is prevented from entering the bearing box. The two combined action can almost realize absolute sealing, thereby greatly avoiding the problems of poor lubrication and bearing burnout caused by the fact that rolling oil enters the bearing box, ensuring higher safety and normal work of the rolling mill device.
Preferably, the annular side edge is flared outwardly.
Preferably, the slinger is U-shaped in axial cross-section.
Preferably, the slinger is surrounded by a U-shaped sealing strip.
Preferably, the slinger is further provided with fastening means for securing a U-shaped sealing strip.
Preferably, the fastening means is a clip.
Preferably, the clamp comprises a clamping band and a locking mechanism for locking two ends of the clamping band.
Preferably, the locking mechanism comprises a screw rod arranged at one end of the clamping band, a positioning sleeve arranged at the other end of the clamping band and a stop nut in threaded connection with the screw rod, and the screw rod can penetrate through the positioning sleeve.
Preferably, the screw rod is further provided with a positioning sleeve, and after the screw rod passes through the positioning sleeve, the positioning sleeve is located between the stop nut and the positioning sleeve.
Preferably, the oil seal member is an annular oil seal member. The annular oil seal component is sleeved on the thrust ring.
Preferably, the oil seal component is a J-type oil seal. The J-shaped oil seal is provided with an inner diameter lip, and the inner diameter lip is attached to the thrust ring.
Preferably, more than two J-shaped oil seals are arranged in the sealing groove.
Preferably, the inner diameter lip of the J-shaped oil seal faces outwards.
Preferably, the bearing comprises an inner ring, an outer ring and a rolling body arranged between the inner ring and the outer ring, the outer ring is fixed in the bearing box main body, and the inner ring is sleeved on the roll shaft.
More preferably, the bearing is a four-row cylindrical roller bearing, the four-row cylindrical roller bearing comprises an inner ring, an outer ring and four rows of rolling bodies arranged between the inner ring and the outer ring, the outer ring is fixed in the bearing box main body, and the inner ring is sleeved on the roller shaft.
Preferably, the bearing box is further provided with an oil and gas pipeline for conveying oil and gas to the bearing and the oil seal component. The oil gas pipeline is provided with an oil gas inlet. The oil gas inlet is communicated with an oil gas source for supplying oil gas. The oil gas enters the bearing and the oil seal so as to be lubricated and sealed.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a backing roll device is equipped with special oil scraper ring and oil blanket part, and the two combined action can realize absolute seal almost, thereby has greatly avoided rolling oil to get into the problem that the bearing box leads to lubricated bad, burn out the bearing, and the security is higher, ensures rolling mill device and normally works.
Drawings
Fig. 1 is a schematic partial sectional view of a sealed support roller device according to embodiment 1 of the present invention.
Fig. 2 is an axial sectional view of an oil deflector ring in a sealed support roller device according to embodiment 1 of the present invention.
Fig. 3 is a schematic view of a fastening device in a sealed support roller device according to embodiment 1 of the present invention.
Fig. 4 is an enlarged view of P in fig. 3.
Detailed Description
The present invention will be further described with reference to the following embodiments.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Furthermore, if the terms "first," "second," and the like are used for descriptive purposes only, they are used for mainly distinguishing different devices, elements or components (the specific types and configurations may be the same or different), and they are not used for indicating or implying relative importance or quantity among the devices, elements or components, but are not to be construed as indicating or implying relative importance.
Example 1
A sealed supporting roller device comprises a supporting roller 1 and a bearing box 2 as shown in figures 1-4. The supporting roller 1 comprises a roller body 11 and roller shafts 12 located at two ends of the roller body 11, and thrust rings 13 are sleeved on the roller shafts 12. The supporting roller is made of 9Cr2Mo material. The thrust ring is made of No. 45 steel.
The bearing box 2 comprises a bearing box main body 24 and a bearing 21 which is arranged in the bearing box main body 24 and used for fixing the roll shaft 12, the bearing 21 is sleeved on the roll shaft 12, one side of the bearing 21, which is close to the roll body 11, is provided with an annular gland 22, and the gland 22 is sleeved on the thrust ring 13.
The gland 22 is sleeved with an oil slinger 23, one side of the oil slinger 23 close to the roller body 11 is provided with an annular side 231 arranged along the edge, and the annular side 231 abuts against the end face of the roller body 11 and prevents the rolling oil from flowing to the bearing 21. The slinger 23 is made of an elastic and wear-resistant material. The annular side 231 is flared outwardly. The slinger 23 is U-shaped in axial cross-section.
The slinger 23 is surrounded by a U-shaped sealing strip. The slinger 23 is further provided with fastening means 232 for fixing the U-shaped sealing strip. In this embodiment, the fastening device 232 is a clip. The clamp band includes a clamping band 2321 and a locking mechanism 2322 for locking both ends of the clamping band 2321. The locking mechanism 2322 includes a screw 2323 disposed at one end of the clamping band 2321, a positioning sleeve 2324 disposed at the other end of the clamping band 2321, and a stop nut 2325 in threaded connection with the screw 2323, wherein the screw 2323 can pass through the positioning sleeve 2324. One end of the screw 2323 is connected to the clamping band 2321 by a pin, and specifically, the screw 2323 is connected to the clamping band 2321 by a pin 2327. After the other end of the threaded rod 2323 passes through the locating sleeve 2324, the stop nut 2325 is screwed onto the threaded rod 2323 and tightened to lock the clamp. In this embodiment, the screw 2323 is further provided with a positioning sleeve 2324 and the positioning sleeve 2326 are located between the stop nut and the positioning sleeve 2324 after the screw 2323 passes through the positioning sleeve 2324.
A seal groove 221 for placing an oil seal member 222 is provided inside the gland 22, and the oil seal member 222 is provided in the seal groove 221. The oil seal member 222 is an annular oil seal member. The annular oil seal member is fitted over the thrust ring 13. Specifically, in the present embodiment, the oil seal member 222 is a J-type oil seal. The J-shaped oil seal is provided with an inner diameter lip, and the inner diameter lip is attached to the thrust ring. Two J-shaped oil seals are disposed in the seal groove 221. The inner diameter lip of the J-shaped oil seal faces outwards.
The bearing 21 includes an inner ring 211, an outer ring 213, and rolling elements 212 disposed between the inner ring 211 and the outer ring 213, the outer ring 213 is fixed in the bearing housing main body 24, and the inner ring 211 is fitted over the roller shaft 12. Specifically, in the present embodiment, the bearing is a four-row cylindrical roller bearing including an inner ring, an outer ring, and four rows of rolling elements disposed between the inner ring and the outer ring.
The bearing housing 2 is also provided with an oil and gas conduit 25 for delivering oil and gas to the bearing 21 and the oil seal member 222. The oil and gas pipeline 25 is provided with an oil and gas inlet 251. The oil and gas inlet 251 is in communication with an oil and gas source for supplying oil and gas. The oil gas enters the bearing and the oil seal so as to be lubricated and sealed.
When the supporting roller device works, one side of the oil retainer is close to the end face of the roller body, so that the rolling oil is prevented from flowing to the bearing. Meanwhile, the oil seal component on the inner side of the gland can seal the gap between the thrust ring and the gland, and a large amount of external rolling oil is prevented from entering the bearing box. The two combined action can almost realize absolute sealing, thereby greatly avoiding the problems of poor lubrication and bearing burnout caused by the fact that rolling oil enters the bearing box, ensuring higher safety and normal work of the rolling mill device.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A sealed supporting roller device is characterized by comprising a supporting roller (1) and a bearing box (2); the supporting roller (1) comprises a roller body (11) and roller shafts (12) positioned at two ends of the roller body (11), wherein thrust rings (13) are sleeved on the roller shafts (12);
the bearing box (2) comprises a bearing box main body (24) and a bearing (21) which is arranged in the bearing box main body (24) and used for fixing the roll shaft (12), the bearing (21) is sleeved on the roll shaft (12), an annular gland (22) is arranged on one side, close to the roll body (11), of the bearing (21), and the gland (22) is sleeved on the thrust ring (13);
an oil retainer ring (23) is sleeved on the gland (22), one side of the oil retainer ring (23) close to the roller body (11) is provided with an annular side edge (231) arranged along the edge, and the annular side edge (231) abuts against the end face of the roller body (11) and prevents rolling oil from flowing to the bearing (21);
a sealing groove (221) is formed in the inner side of the gland (22), and an oil seal component (222) is arranged in the sealing groove (221).
2. A support roller arrangement according to claim 1, characterised in that the loop-shaped sides (231) are flared outwardly.
3. A supporting roller arrangement, as set forth in claim 2, characterized in that the slinger (23) is U-shaped in axial cross-section.
4. A supporting roller arrangement according to claim 3, characterized in that the slinger (23) is surrounded by a U-shaped sealing strip.
5. A supporting roller arrangement according to claim 4, characterized in that the slinger (23) is further provided with fastening means (232) for fixing a U-shaped sealing strip.
6. A support roller assembly according to claim 1, wherein the oil-sealed member (222) is a J-type oil seal.
7. A support roller assembly according to claim 6, wherein the J-shaped oil seal has an inner diameter lip facing outwardly.
8. The supporting roller device according to claim 1, characterized in that the bearing (21) comprises an inner ring (211), an outer ring (213) and rolling bodies (212) arranged between the inner ring (211) and the outer ring (213), the outer ring (213) being fixed within the bearing housing body (24), the inner ring (211) being fitted over the roller shaft (12).
9. A supporting roll device according to any one of claims 1-8, characterized in that the bearing housing (2) is further provided with an oil and gas pipeline (25) for transporting oil and gas to the bearing (21) and the oil seal part (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792520.5U CN211757621U (en) | 2019-10-23 | 2019-10-23 | Sealed supporting roller device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921792520.5U CN211757621U (en) | 2019-10-23 | 2019-10-23 | Sealed supporting roller device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211757621U true CN211757621U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921792520.5U Active CN211757621U (en) | 2019-10-23 | 2019-10-23 | Sealed supporting roller device |
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| Country | Link |
|---|---|
| CN (1) | CN211757621U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775187A (en) * | 2021-02-01 | 2021-05-11 | 中冶京诚工程技术有限公司 | Supporting roller complete device of cold rolling mill |
-
2019
- 2019-10-23 CN CN201921792520.5U patent/CN211757621U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112775187A (en) * | 2021-02-01 | 2021-05-11 | 中冶京诚工程技术有限公司 | Supporting roller complete device of cold rolling mill |
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