CN221063988U - But eccentric radial adjustment's backing roll bearing unit - Google Patents
But eccentric radial adjustment's backing roll bearing unit Download PDFInfo
- Publication number
- CN221063988U CN221063988U CN202322826687.1U CN202322826687U CN221063988U CN 221063988 U CN221063988 U CN 221063988U CN 202322826687 U CN202322826687 U CN 202322826687U CN 221063988 U CN221063988 U CN 221063988U
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- roller
- bearing
- shaft
- eccentric shaft
- supporting roller
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- 238000007789 sealing Methods 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
A supporting roller bearing component capable of being eccentrically and radially adjusted is used in the field of metallurgical equipment. The two ends of the eccentric shaft are fixed in the circular arc groove of the roller box base, and the roller surface of the supporting roller bearing component is contacted with the roller surface of the middle roller; the middle roller is arranged at the upper part of the bearing component of the supporting roller and is in a free state, and the two ends of the middle roller are provided with rotary joints for bearing axial force; the roll surface of the working roll is contacted with the roll surface of the middle roll, the shaft heads at the two ends of the working roll are fixedly connected through bearing blocks, a needle bearing I is arranged in the bearing blocks, and a thrust bearing is arranged in a thrust bearing block arranged on the bearing blocks. According to the utility model, after the roller surface of the support roller is worn and reduced, the radial height adjustment can be realized by finely adjusting the angle of the eccentric shaft of the rotary support roller, and the mounting height of the support roller is adjusted, so that the combined height of the support roller and the intermediate roller is indirectly ensured, the adjustment precision is high, the roller surface of the working roller can be effectively supported, the original center high position of the working roller is unchanged, the operation and adjustment of equipment are more convenient, and the stable operation of the equipment is ensured.
Description
Technical Field
The utility model relates to the technical field of metallurgical equipment, in particular to a supporting roller bearing component which is applicable to straightening units of a tension leveler and a multi-roller straightener and can be eccentrically and radially adjusted.
Background
In the prior art, equipment such as withdrawal and straightening machine, multi-roll straightener that metallurgical industry used all can cause the back-up roll surface reducing wear after the backing roll is operated for a long time in the straightening operation, lead to the high change of back-up roll group, especially to the model that the high invariable requirement is more strict in work roll center, when backing roll surface reducing wear to a certain extent, if not have high-efficient suitable adjustment measure, when the backing roll can not play the effect to work roll surface supporting atress, can lead to the work roll during operation in the atress state of bending deformation, can directly lead to the straightening plate type disqualification in the production, at this moment, just must carry out the altitude mixture control to the radial of backing roll group. The traditional processing method is to regularly perform cushion matching compensation on the lower surface of the supporting roller set, so that the efficiency is low, the cushion matching precision is relatively poor, the cushion matching compensation is frequently used, the consistency is difficult to ensure, the operability is poor, and if the cushion matching is not in place, the flatness of the supporting roller set is poor and the precision is lost; and the maintenance is carried out a large amount of dismantlement adjustment installation at every turn, can increase operating personnel's intensity of labour, leads to whole roller group precision to lose easily, and repeated positioning accuracy variation has the adverse factors such as maintenance cycle length, precision controllability are poor.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide the supporting roller bearing component capable of being eccentrically and radially adjusted so as to realize the rapid, efficient and adjustable height of the supporting roller group of the withdrawal and straightening machine and the multi-roller straightening machine, ensure the reliable precision and reduce the maintenance cost and the period.
In order to achieve the aim of the utility model, the two ends of the eccentric shaft of the supporting roller bearing component are fixed in the circular arc groove of the roller box base, and the roller surface of the supporting roller bearing component is contacted with the roller surface of the middle roller; the middle roller is arranged at the upper part of the bearing component of the supporting roller and is in a free state, and the two ends of the middle roller are provided with rotary joints which bear axial force and are in threaded connection with the two ends of the middle roller; the roller surface of the working roller is contacted with the roller surface of the middle roller, the shaft heads at the two ends of the working roller are fixedly connected through bearing blocks, a needle bearing I is arranged in the bearing blocks, and a thrust bearing is arranged in a thrust bearing block arranged at the outer side of the bearing blocks.
Further, two rows of needle bearings II are arranged in the middle of the eccentric shaft of the supporting roller bearing component, after the inner rings of the needle bearings II are installed in the eccentric shaft in an interference mode, the supporting roller outer sleeve penetrates into the eccentric shaft, the supporting roller outer sleeve is in interference contact with the outer rings of the needle bearings II, the supporting roller outer sleeve rotates together with the outer rings of the needle bearings II, and the inner rings of the needle bearings II are fixed relative to the eccentric shaft; the thrust ball bearings at two ends penetrate into the eccentric shaft, the thrust ball bearings are positioned through the shaft shoulder of the eccentric shaft and the annular inner hole of the supporting roller outer sleeve, the outer sides of the thrust ball bearings at two ends are provided with a framework seal for preventing grease at the outer diameters of the supporting roller outer sleeve and the shaft ring and a shaft ring for protecting the framework seal from being separated and inclined, one end of the eccentric shaft is provided with an oil cup, and the oil cup is filled with grease to lubricate the needle roller bearing II and the thrust ball bearings through the inner oil hole of the eccentric shaft.
Further, an axial positioning baffle ring is arranged between two rows of needle bearings II in the middle of the supporting roller bearing component, the two axial positioning baffle rings used for preventing the needle bearings II from moving are clamped in a positioning clamping groove of the eccentric shaft, and the two rows of needle bearings II are limited by the axial positioning baffle ring; and a first elastic retainer ring for the shaft is arranged between the second needle bearing and the axial positioning baffle ring.
Furthermore, the shaft rings at the two ends of the supporting roller bearing component are limited by the second elastic check ring for the shaft, and the second elastic check ring for the shaft is arranged in the positioning clamping grooves at the two sides of the eccentric shaft.
Furthermore, an O-shaped sealing ring I is arranged between the eccentric shafts at the two ends of the supporting roller bearing component and the shaft rings, and an O-shaped sealing ring II is arranged between the shaft rings and the thrust ball bearing.
Compared with the prior art, the utility model has the following advantages:
After the wear of the roller surface of the support roller is reduced, the radial height adjustment of the eccentric shaft of the support roller is realized by finely adjusting the angle of the eccentric shaft of the support roller, the combined height of the support roller and the middle roller is indirectly ensured by adjusting the installation height of the support roller, the adjustment precision is high, the roller surface of the work roller can be effectively supported, the original center height position of the work roller is unchanged, the operation and adjustment of equipment are more convenient, and the stable operation of the equipment is ensured.
The single eccentric supporting roller is used for fine adjustment of the height, so that the precision defect caused by machining and manufacturing of other parts of the roller system components is overcome, the contact rate of the supporting roller and the middle roller is guaranteed to be more than 95%, the stress of the middle roller and the working roller is more uniform, and the service life of the roller system is prolonged.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a partial enlarged view of fig. 1.
Fig. 3 is a cross-sectional view A-A of fig. 1.
Fig. 4 is an enlarged view of the backup roll bearing assembly of fig. 1.
Detailed Description
As shown in fig. 1, 2, 3 and 4, two ends of an eccentric shaft 1 of a supporting roller bearing component 20 of the utility model are fixed in an arc groove of a roller box base 21, and the roller surface of the supporting roller bearing component 20 is contacted with the roller surface of a middle roller 22, and can automatically rotate along with friction between roller systems during operation; the middle roller 22 is arranged at the upper part of the supporting roller bearing component 20 and is in a free state, the two ends of the middle roller are provided with rotary joints 23 which bear axial force, and the rotary joints 23 are in threaded connection with the two ends of the middle roller 22; the roll surface of the working roll 24 is contacted with the roll surface of the intermediate roll 22, the shaft heads at the two ends of the working roll 24 are fixedly connected through bearing blocks 25, a needle bearing I26 is arranged in the bearing blocks 25, and a thrust bearing 27 is arranged in a thrust bearing block 28 arranged on the bearing blocks 25.
The middle of the eccentric shaft 1 of the supporting roller bearing component 20 is provided with two rows of needle bearings II 8, after the inner ring of the needle bearings II 8 is installed in the eccentric shaft 1 in an interference manner, the supporting roller jacket 11 penetrates into the eccentric shaft 1, the supporting roller jacket 11 is in interference contact with the outer ring of the needle bearings II 8, and when in operation, the supporting roller jacket 11 rotates together with the outer ring of the needle bearings II 8, and the inner ring of the needle bearings II is relatively fixed with the eccentric shaft 1; the thrust ball bearings 7 at two ends penetrate into the eccentric shaft 1, the thrust ball bearings 7 are positioned through the shaft shoulder of the eccentric shaft 1 and the annular inner hole of the supporting roller sleeve 11, the outer sides of the thrust ball bearings 7 at two ends are provided with a framework seal 5 and a shaft collar 3, the framework seal 5 is mainly used for preventing grease at the outer diameters of the supporting roller sleeve 11 and the shaft collar 3 from overflowing, and the shaft collar 3 is mainly used for protecting the framework seal 5 from being separated and inclined; one end of the eccentric shaft 1 is provided with an oil cup 12, and grease can be filled into the inner oil hole of the eccentric shaft 1 to lubricate the needle bearing II 8 and the thrust ball bearing 7 at regular intervals.
An axial positioning baffle ring 10 is arranged between the two rows of needle bearings II 8 in the middle of the supporting roller bearing component 20, and the two axial positioning baffle rings 10 are clamped in positioning clamping grooves of the eccentric shaft 1 and used for preventing the needle bearings II 8 from moving, and the two rows of needle bearings II 8 are limited by the axial positioning baffle ring 10; and a first elastic retainer ring 9 for the shaft is arranged between the second needle bearing 8 and the axial positioning baffle ring 10.
The shaft rings 3 at the two ends of the supporting roller bearing component 20 are limited by the second elastic check ring 2 for the shaft, and the second elastic check ring 2 for the shaft is arranged in the positioning clamping grooves at the two sides of the eccentric shaft 1, so that the thrust ball bearing 7 and the shaft rings 3 are prevented from moving during operation.
An O-shaped sealing ring I4 is arranged between the eccentric shaft 1 and the shaft collar 3 at the two ends of the supporting roller bearing component 20, and an O-shaped sealing ring II 6,O and an O-shaped sealing ring II 6 are arranged between the shaft collar 3 and the thrust ball bearing 7 and are both arranged on the eccentric shaft 1 so as to prevent lubricating grease from leaking.
The back-up roll bearing unit 20 of the utility model is installed in the circular arc groove on the roll box base 21 through the eccentric shaft 1, the back-up roll jacket 11 of each row of back-up roll bearing unit 20 contacts with the roll surface of the middle roll 22, the roll surface of the middle roll 22 contacts with the roll surface of the working roll 24, the three rolls are arranged in a delta shape, the friction rotates during operation, as the roll surface hardness of the working roll 24 is greater than the roll surface hardness of the middle roll 22, the roll surface hardness of the middle roll 22 is greater than the hardness of the back-up roll jacket 11 of the back-up roll bearing unit 20, the hardness gradient exists, the abrasion of the back-up roll jacket 11 of the back-up roll bearing unit 20 is the largest after long-term operation, the contact gap between the back-up roll bearing unit 20 and the middle roll 22 and between the middle roll 22 and the working roll 24 is bigger, the function of supporting roller surface can not be achieved, when the gap is overlarge, only the angle of the eccentric shaft 1 of the supporting roller bearing component 20 is required to be adjusted, and the supporting roller bearing component 20 can be locked after being reinstalled, so that the function of supporting stress can be achieved after the height adjustment of the supporting roller bearing component 20, and then the supporting roller bearing component 20 and the middle roller 22 and the working roller 24 are guaranteed to be well contacted, a series of problems caused by abrasion of the supporting roller jacket 11 of the supporting roller bearing component 20 can be effectively avoided, the adjustment efficiency and accuracy are improved, normal operation of equipment is guaranteed, meanwhile, the labor intensity caused by the compensation of the height of the matched gasket is reduced, and a series of risks caused by frequent disassembly and adjustment are reduced.
Claims (5)
1. A backup roll bearing assembly that is eccentrically and radially adjustable, characterized by: the two ends of the eccentric shaft (1) of the supporting roller bearing component (20) are fixed in the arc groove of the roller box base (21), and the roller surface of the supporting roller bearing component (20) is contacted with the roller surface of the middle roller (22); the middle roller (22) is arranged at the upper part of the supporting roller bearing component (20) and is in a free state, the two ends of the middle roller are provided with rotary joints (23) bearing axial force, and the rotary joints (23) are in threaded connection with the two ends of the middle roller (22); the roller surface of the working roller (24) is contacted with the roller surface of the middle roller (22), the shaft heads at the two ends of the working roller (24) are fixedly connected through bearing blocks (25), a needle bearing I (26) is arranged in the bearing blocks (25), and a thrust bearing (27) is arranged in a thrust bearing block (28) arranged on the bearing blocks (25).
2. An eccentrically radially adjustable backup roll bearing assembly according to claim 1 wherein: two rows of needle bearings II (8) are arranged in the middle of an eccentric shaft (1) of the supporting roller bearing component (20), after an inner ring of the needle bearings II (8) is in interference fit with the eccentric shaft (1), a supporting roller outer sleeve (11) penetrates into the eccentric shaft (1), the supporting roller outer sleeve (11) is in interference contact with an outer ring of the needle bearings II (8), the supporting roller outer sleeve (11) rotates together with the outer ring of the needle bearings II (8), and the inner ring of the needle bearings II (8) is relatively fixed with the eccentric shaft (1); the thrust ball bearings (7) at two ends penetrate into the eccentric shaft (1), the thrust ball bearings (7) are positioned through annular inner holes of the shaft shoulder of the eccentric shaft (1) and the supporting roller outer sleeve (11), the outer sides of the thrust ball bearings (7) at two ends are provided with a framework seal (5) for preventing the supporting roller outer sleeve (11) and the oil at the outer diameter of the shaft ring (3) from overflowing, the shaft ring (3) for protecting the framework seal (5) from separating from and inclining, one end of the eccentric shaft (1) is provided with an oil cup (12), and the oil cup (12) is filled with grease to lubricate the needle roller bearing II (8) and the thrust ball bearings (7) through an inner oil hole of the eccentric shaft (1).
3. An eccentrically radially adjustable backup roll bearing assembly according to claim 1 wherein: an axial positioning baffle ring (10) is arranged between two rows of needle bearings II (8) in the middle of the supporting roller bearing component (20), the two axial positioning baffle rings (10) used for preventing the needle bearings II (8) from moving are clamped in positioning clamping grooves of the eccentric shaft (1), and the two rows of needle bearings II (8) are limited through the axial positioning baffle rings (10); and a first elastic retainer ring (9) for the shaft is arranged between the second needle bearing (8) and the axial positioning baffle ring (10).
4. An eccentrically radially adjustable backup roll bearing assembly according to claim 1 wherein: the shaft rings (3) at two ends of the supporting roller bearing component (20) are limited through second elastic check rings (2) for shafts, and the second elastic check rings (2) for shafts are arranged in positioning clamping grooves at two sides of the eccentric shaft (1).
5. An eccentrically radially adjustable backup roll bearing assembly according to claim 1 wherein: an O-shaped sealing ring I (4) is arranged between the eccentric shafts (1) and the shaft rings (3) at two ends of the supporting roller bearing component (20), and an O-shaped sealing ring II (6) is arranged between the shaft rings (3) and the thrust ball bearing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826687.1U CN221063988U (en) | 2023-10-20 | 2023-10-20 | But eccentric radial adjustment's backing roll bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322826687.1U CN221063988U (en) | 2023-10-20 | 2023-10-20 | But eccentric radial adjustment's backing roll bearing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221063988U true CN221063988U (en) | 2024-06-04 |
Family
ID=91267858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322826687.1U Active CN221063988U (en) | 2023-10-20 | 2023-10-20 | But eccentric radial adjustment's backing roll bearing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221063988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118287536A (en) * | 2024-06-05 | 2024-07-05 | 太原理工大学 | Supporting roller assembly and straightener |
-
2023
- 2023-10-20 CN CN202322826687.1U patent/CN221063988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118287536A (en) * | 2024-06-05 | 2024-07-05 | 太原理工大学 | Supporting roller assembly and straightener |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |