CN111167865A - Roll bearing assembly structure - Google Patents
Roll bearing assembly structure Download PDFInfo
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- CN111167865A CN111167865A CN201911109137.XA CN201911109137A CN111167865A CN 111167865 A CN111167865 A CN 111167865A CN 201911109137 A CN201911109137 A CN 201911109137A CN 111167865 A CN111167865 A CN 111167865A
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- bearing
- roller bearing
- sleeve
- transparent cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/07—Adaptation of roll neck bearings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/07—Adaptation of roll neck bearings
- B21B31/076—Cooling; Lubricating roller bearings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention belongs to the technical field of steel rolling equipment, and particularly relates to a roller bearing assembly structure; the roller is rotatably arranged in a bearing seat through a cylindrical roller bearing and a tapered roller bearing, and is provided with an axial positioning assembly which is used for axially positioning the cylindrical roller bearing and the tapered roller bearing; the roller bearing comprises a bearing seat, a bearing seat and a bearing seat, wherein a first oil inlet channel and a second oil inlet channel are axially arranged in the bearing seat, a plurality of annular oil grooves are formed in the hole wall of an inner hole of the bearing seat, the first oil inlet channel is communicated with the annular oil grooves through a plurality of first branches, and the second oil inlet channel is communicated with the annular oil grooves through a plurality of groups of second branches.
Description
Technical Field
The invention belongs to the technical field of steel rolling equipment, and particularly relates to a roller bearing assembling structure.
Background
Along with the width of the strip steel produced by steel enterprises is larger and larger, the size of a corresponding roller of a rolling mill is also increased continuously, the size of a bearing in a roller system is also increased, the roller rotates in the working process and needs to bear radial force and axial force, higher requirements are provided for an assembly structure of the roller, more reasonable and stable assembly is needed, and meanwhile, the lubricating form of the bearing is also a problem to be improved continuously. In the prior small-sized strip steel production line, because the size of the used bearing is relatively small, the use requirement can be met by adopting a single-oil-inlet (only one oil inlet hole is drilled on a bearing seat of a rolling mill) oil-gas lubrication mode. But the rolling mill on a large strip steel production line can not meet the requirements, and if a single oil inlet form is adopted, the shaft roller system bearing of the rolling mill is easy to burn.
Disclosure of Invention
In view of the above, the present invention is directed to a roller bearing assembly structure, which can solve the roller assembly problem in the prior art and solve the problem of poor bearing lubrication effect caused by unreasonable lubrication channels at present.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a roll bearing assembly structure, a roll is rotatably arranged in a bearing seat through a cylindrical roller bearing and a tapered roller bearing, and an axial positioning assembly is arranged on the roll and used for axially positioning the cylindrical roller bearing and the tapered roller bearing;
the bearing seat is internally provided with a first oil inlet channel and a second oil inlet channel which are arranged along the axial direction, the first oil inlet channel and the second oil inlet channel are respectively arranged on two sides of the bearing seat and are arranged diagonally, the hole wall of an inner hole of the bearing seat is provided with a plurality of annular oil grooves, the first oil inlet channel is communicated with the annular oil grooves through a plurality of first branches, and the second oil inlet channel is communicated with the annular oil grooves through a plurality of groups of second branches.
Furthermore, each group of the second branch comprises a main branch and a reversing branch; the reversing branch is communicated with the annular oil groove, the main branch is communicated with the second oil inlet channel and the reversing branch, and the main branch and the reversing branch are vertically staggered and communicated at an intersection point.
Furthermore, the end ports of the first branch, the main branch and the reversing branch are sealed by screw plugs.
Furthermore, the axial positioning assembly comprises a shaft sleeve and a sleeve cup, the shaft sleeve is used for separating the tapered roller bearing from the cylindrical roller bearing, the shaft sleeve is sleeved on the roller and is extruded between an inner ring of the tapered roller bearing and a shaft shoulder of the roller, the sleeve cup is sleeved outside the tapered roller bearing, the tail end of the sleeve cup is provided with a positioning end extruded between an outer ring of the tapered roller bearing and the cylindrical roller bearing, and a lubricating channel penetrating through the sleeve wall is arranged in the sleeve cup.
Further, the axial positioning assembly also comprises a threaded sleeve and a support sleeve which are positioned on the roller, a front transparent cover which is plugged outside the tapered roller bearing and a rear transparent cover which is plugged outside the cylindrical roller bearing; the threaded sleeve is sleeved on the roller, one side of the threaded sleeve is extruded on the end face of the inner ring of the tapered roller bearing, the front transparent cover is detachably connected to the sleeve cup, a convex ring tightly propped against the outer ring of the tapered roller bearing is arranged on the inner side of the front transparent cover, the supporting sleeve is sleeved on the roller and is extruded on the shaft shoulders of the cylindrical roller bearing and the roller, and the rear transparent cover is detachably and fixedly connected to the bearing block.
Furthermore, the front transparent cover is sleeved outside the threaded sleeve, and a J-shaped frameless sealing ring is arranged between the front transparent cover and the threaded sleeve; the rear transparent cover is sleeved outside the support sleeve, and a J-shaped frameless sealing ring is arranged between the rear transparent cover and the support sleeve.
Furthermore, an air vent communicated with the outside is arranged in the rear transparent cover.
Furthermore, the outer side of the threaded sleeve is positioned through the half rings and the round nuts which are connected together, the half rings are clamped in the positioning grooves formed in the roller, the round nuts are screwed outside the threaded sleeve, and meanwhile the half rings and the round nuts are connected together through a connecting block.
Compared with the prior art, the invention has the following advantages:
the roller is arranged in the bearing seat through a cylindrical roller bearing and a tapered roller bearing, the cylindrical roller bearing is stressed in the radial direction, the rolling reduction force of the rolling mill is borne by the cylindrical roller bearing, and the tapered roller bearing is mainly used for bearing the axial force and is used for bearing the radial force of a roller system; and the axial positioning assembly arranged on the roller is used for axially positioning the cylindrical roller bearing and the tapered roller bearing, so that the bearing is more stably assembled, and the performance of the equipment is improved.
The double-oil-inlet channel is processed at a proper position on the basis of single oil inlet of the original rolling mill bearing seat, so that the oil inlet amount can be increased, and the lubricating effect is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a bearing seat;
FIG. 3 is a schematic view of the distribution of the lubricant passages in the bearing housing;
FIG. 4 is a front view of the bearing housing;
FIG. 5 is a cross-sectional view of the bearing housing of FIG. 4 at section A;
FIG. 6 is a top view of the bearing seat;
fig. 7 is a cross-sectional view of the bearing housing of fig. 6 at section B.
Description of reference numerals:
1-rolling; 2-bearing seat; 21-a first oil inlet channel; 211-branch number one; 22-second oil inlet channel; 221-main branch; 222-a commutation branch; 23-an annular oil groove; 24-a plug screw; 31-cylindrical roller bearings; 32-tapered roller bearings; 41-shaft sleeve; 42-a retainer cup; 421-a lubrication channel; 422-a positioning end; 51-a front transparent cover; 52-rear transparent cover; 521-an exhaust hole; 61-thread bush; 62-a support sleeve; 7-J type frameless sealing rings; 81-half ring; 82-round nuts; 83-connecting block.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1-7, a roll bearing assembly structure, a roll 1 is rotatably mounted in a chock 2 through a cylindrical roller bearing 31 and a tapered roller bearing 32, and the roll 1 is mounted with an axial positioning assembly by which the cylindrical roller bearing 31 and the tapered roller bearing 32 are axially positioned;
the bearing seat 2 is internally provided with a first oil inlet channel 21 and a second oil inlet channel 22 which are arranged along the axial direction, the first oil inlet channel 21 and the second oil inlet channel 22 are respectively arranged at two sides of the bearing seat 2 and are arranged diagonally, the hole wall of an inner hole of the bearing seat 2 is provided with a plurality of annular oil grooves 23, the first oil inlet channel 21 is communicated with the annular oil grooves 23 through a plurality of first branches 211, the second oil inlet channel 22 is communicated with the annular oil grooves 23 through a plurality of groups of second branches, and each group of the second branches comprises a main branch 221 and a reversing branch 222; the diverting branch 222 communicates with the annular oil groove 23, the main branch 221 communicates the No. two oil inlet passage 22 with the diverting branch 222, and the main branch 221 and the diverting branch 222 are vertically staggered and communicate at an intersection point.
The lubricated mode of traditional single oil feed oil is advanced oil quantity on the one hand and is less, and lubricated effect simultaneously relies on oil mass and random oil flow trend, and lubricated effect is general relatively. The invention is based on the original rolling mill bearing seat 2 single oil inlet, process the double oil inlet channel in the appropriate position, so can increase the oil inlet amount, improve the lubricating effect, in addition, the design of the second branch is mainly to make the lubricating oil form the rotary oil supply in the annular oil groove 23, because the bearing seat 2 also installs other parts, the position of the second oil inlet channel 22 is relatively fixed, can't change at will, figure 5 shows the flow direction distribution of the lubricating oil in the bearing seat 2, if connect the main branch 221 with the annular oil groove 23 directly, in the annular oil groove 23, the two oil inlet channels supply oil because of the flow direction is opposite to take place the opposite rush, can't form the unidirectional rotary oil supply, therefore, set up a reversal branch 222 additionally, change the lubricating oil that the second oil inlet channel 22 enters over, make it with the oil inlet flow direction of the first oil inlet channel 21 in the annular oil groove 23 the same, make lubricating oil form rotatory fuel feeding in annular oil groove 23, improve lubricating oil functioning speed, can be more abundant lubricated like this, further improved lubricated effect.
Further, the end ports of the first branch 211, the main branch 221 and the reversing branch 222 are closed by the screw plugs 24, so that the lubricating oil is prevented from leaking.
The axial positioning assembly comprises a shaft sleeve 41 and a sleeve cup 42 which are used for separating the tapered roller bearing 32 and the cylindrical roller bearing 31, the shaft sleeve 41 is sleeved on the roller 1 and is extruded between an inner ring of the tapered roller bearing 32 and a shaft shoulder of the roller 1, the sleeve cup 42 is sleeved outside the tapered roller bearing 32, the tail end of the sleeve cup is provided with a positioning end 422 which is extruded between an outer ring of the tapered roller bearing 32 and the cylindrical roller bearing 31, and a lubricating channel 421 which penetrates through the sleeve wall is formed in the sleeve cup 42 so that lubricating oil can enter the sleeve cup to lubricate the bearing. The axial positioning assembly also comprises a threaded sleeve 61 and a support sleeve 62 which are positioned on the roller 1, a front transparent cover 51 which is sealed outside the tapered roller bearing 32 and a rear transparent cover 52 which is sealed outside the cylindrical roller bearing 31; the threaded sleeve 61 is sleeved on the roller 1, one side of the threaded sleeve is extruded on the end face of the inner ring of the tapered roller bearing 32, the front transparent cover 51 is detachably connected on the sleeve cup 42, the inner side of the front transparent cover is provided with a convex ring tightly propped against the outer ring of the tapered roller bearing 32, the support sleeve 62 is sleeved on the roller 1 and is extruded on the cylindrical roller bearing 31 and the shaft shoulder of the roller 1, and the rear transparent cover 52 is detachably and fixedly connected on the bearing seat 2.
Preferably, the front transparent cover 51 is sleeved outside the threaded sleeve 61, and a J-shaped frameless sealing ring 7 is arranged between the front transparent cover and the threaded sleeve 61; the rear transparent cover 52 is sleeved outside the support sleeve 62, and a J-shaped frameless sealing ring 7 is arranged between the rear transparent cover and the support sleeve 62. The J-shaped frameless sealing ring 7 has good sealing performance, can play a good role in sealing and prevents lubricating oil from leaking.
Preferably, a vent hole 521 is opened in the rear transparent cover 52 to communicate with the outside. Because the inside of the roller system is sealed, the bearings inside the roller system are lubricated by oil gas, and when oil gas is introduced into the roller system from the outside, the exhaust holes 521 are needed for exhausting the air so as to facilitate the entry of the oil gas.
Preferably, the outer side of the thread bushing 61 is positioned through the half ring 81 and the round nut 82 which are connected together, the half ring 81 is clamped in a positioning groove arranged in the roller 1, the round nut 82 is screwed outside the thread bushing 61, meanwhile, the half ring 81 and the round nut 82 are connected together through a connecting block 83, the thread bushing 61 serves as the tail end of the whole positioning system, the key effect is achieved on the positioning of the bearing, the ingenious positioning structure is adopted, the axial and radial positioning is achieved on the thread bushing 61 at the same time, and therefore the stable installation and positioning of the whole structure are guaranteed. How to install the half ring 81 in the positioning groove in the roller 1 is convenient, and the half ring 81 is adopted to skillfully solve the problem because a closed structure such as a circular ring cannot be installed in the positioning groove in the roller 1.
When the roller is installed, the roller 1 is installed in the bearing seat 2 through the cylindrical roller bearing 31 and the tapered roller bearing 32, the cylindrical roller bearing 31 is stressed in the radial direction, the rolling reduction force of the rolling mill is borne by the cylindrical roller bearing 31, and the tapered roller bearing 32 is mainly stressed in the axial direction and is used for bearing the radial force of a roller system; moreover, the cylindrical roller bearing 31 and the tapered roller bearing 32 are axially positioned through the axial positioning assembly arranged on the roller 1, and meanwhile, the sealing and lubrication of the bearings are considered, so that the assembly of the bearings is more stable and reasonable, and the performance of the equipment is improved.
The invention processes double oil inlet channels at proper positions on the basis of single oil inlet of the original rolling mill bearing seat 2, thus increasing the oil inlet amount and improving the lubricating effect, in addition, the lubricating channel 421 is reasonably and skillfully designed, and the lubricating oil can form rotary oil supply in the annular oil groove 23, thereby improving the operating speed of the lubricating oil, so that the lubricating oil can be more fully lubricated and the lubricating effect is further improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A roll bearing assembly structure is characterized in that: the roller (1) is rotatably arranged in a bearing seat (2) through a cylindrical roller bearing (31) and a tapered roller bearing (32), an axial positioning assembly is arranged on the roller (1), and the cylindrical roller bearing (31) and the tapered roller bearing (32) are axially positioned through the axial positioning assembly;
be equipped with in bearing frame (2) along the axial No. one oil feed passageway (21) and No. two oil feed passageway (22) that set up, No. one oil feed passageway (21) and No. two oil feed passageway (22) set up respectively in the both sides of bearing frame (2), are diagonal angle and arrange, it has a plurality of annular oil groove (23) to open on the hole pore wall of bearing frame (2), No. one oil feed passageway (21) communicate through a plurality of branch roads (211) and annular oil groove (23), No. two oil feed passageway (22) communicate with annular oil groove (23) through a plurality of groups No. two branch roads.
2. The roll bearing assembling structure according to claim 1, wherein: each group of the second branch comprises a main branch (221) and a reversing branch (222); the reversing branch (222) is communicated with the annular oil groove (23), the main branch (221) is communicated with the second oil inlet channel (22) and the reversing branch (222), and the main branch (221) and the reversing branch (222) are vertically staggered and communicated at an intersection point.
3. The roll bearing assembling structure according to claim 2, wherein: the end ports of the first branch (211), the main branch (221) and the reversing branch (222) are closed by screw plugs (24).
4. The roll bearing assembling structure according to claim 1, wherein: the axial positioning assembly comprises a shaft sleeve (41) and a sleeve cup (42) which are used for separating the tapered roller bearing (32) and the cylindrical roller bearing (31), the shaft sleeve (41) is sleeved on the roller (1) and is extruded between an inner ring of the tapered roller bearing (32) and a shaft shoulder of the roller (1), the sleeve cup (42) is sleeved outside the tapered roller bearing (32), the tail end of the sleeve cup is provided with a positioning end (422) extruded between an outer ring of the tapered roller bearing (32) and the cylindrical roller bearing (31), and a lubricating channel (421) penetrating through the sleeve wall is formed in the sleeve cup (42).
5. The roll bearing assembling structure according to claim 4, wherein: the axial positioning assembly further comprises a threaded sleeve (61) and a supporting sleeve (62) which are positioned on the roller (1), a front transparent cover (51) which is sealed at the outer side of the tapered roller bearing (32) and a rear transparent cover (52) which is sealed at the outer side of the cylindrical roller bearing (31); the threaded sleeve (61) is sleeved on the roller (1) and one side of the threaded sleeve is extruded on the end face of an inner ring of the tapered roller bearing (32), the front transparent cover (51) is detachably connected to the sleeve cup (42) and the inner side of the front transparent cover is provided with a convex ring tightly propped against the outer ring of the tapered roller bearing (32), the support sleeve (62) is sleeved on the roller (1) and extruded on shaft shoulders of the cylindrical roller bearing (31) and the roller (1), and the rear transparent cover (52) is detachably and fixedly connected to the bearing seat (2).
6. The roll bearing assembling structure according to claim 5, wherein: the front transparent cover (51) is sleeved outside the threaded sleeve (61), and a J-shaped frameless sealing ring (7) is arranged between the front transparent cover and the threaded sleeve; the rear transparent cover (52) is sleeved outside the support sleeve (62), and a J-shaped frameless sealing ring (7) is arranged between the rear transparent cover and the support sleeve.
7. The roll bearing assembling structure according to claim 5, wherein: an air vent (521) communicated with the outside is arranged in the rear transparent cover (52).
8. The roll bearing assembling structure according to claim 5, wherein: the outer side of the threaded sleeve (61) is positioned through a half ring (81) and a round nut (82) which are connected together, the half ring (81) is clamped in a positioning groove arranged in the roller (1), the round nut (82) is screwed outside the threaded sleeve (61), and meanwhile, the half ring (81) and the round nut (82) are connected together through a connecting block (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109137.XA CN111167865A (en) | 2019-11-13 | 2019-11-13 | Roll bearing assembly structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911109137.XA CN111167865A (en) | 2019-11-13 | 2019-11-13 | Roll bearing assembly structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111167865A true CN111167865A (en) | 2020-05-19 |
Family
ID=70617906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911109137.XA Pending CN111167865A (en) | 2019-11-13 | 2019-11-13 | Roll bearing assembly structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111167865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076242A (en) * | 2022-06-23 | 2022-09-20 | 重庆钢铁股份有限公司 | Integrated bearing pedestal, roller and method for dismounting bearing pedestal and burning bearing |
-
2019
- 2019-11-13 CN CN201911109137.XA patent/CN111167865A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076242A (en) * | 2022-06-23 | 2022-09-20 | 重庆钢铁股份有限公司 | Integrated bearing pedestal, roller and method for dismounting bearing pedestal and burning bearing |
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