CN213378497U - A rolling mill and its axial limiting device for a roll bearing seat - Google Patents
A rolling mill and its axial limiting device for a roll bearing seat Download PDFInfo
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- CN213378497U CN213378497U CN202022229627.8U CN202022229627U CN213378497U CN 213378497 U CN213378497 U CN 213378497U CN 202022229627 U CN202022229627 U CN 202022229627U CN 213378497 U CN213378497 U CN 213378497U
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- rod support
- rolling mill
- bearing seat
- pull rod
- positioning pin
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Abstract
本实用新型公开一种轧机及其轧辊轴承座轴向限位装置，轴向限位装置包括：轴承座，通过轴承与轧辊相连；拉杆支座，设置在所述轴承座远离所述轧辊的一侧，所述拉杆支座相对所述轴承座的端部开设有深度方向沿所述轴承座径向的方孔；盖板，固接在所述拉杆支座方孔远离所述轴承座的一端；定位销，设置在所述轴承座与所述盖板之间，所述定位销一端与所述轴承座固接，另一端插入所述拉杆支座的方孔内；滑动垫，套设在插入所述拉杆支座方孔内的定位销上；调整板，数量为两个，所述调整板位于拉杆支座内壁与所述滑动垫之间。本实用新型应不仅能够平稳可靠的限定轧辊轴承座的轴向窜动，而且能够有效分解轧钢过程中产生的冲击。
The utility model discloses an axial limiting device for a rolling mill and a bearing seat of the roller. The axial limiting device comprises: a bearing seat, which is connected with the roller through the bearing; The end of the tie rod support opposite to the bearing seat is provided with a square hole in the depth direction along the radial direction of the bearing seat; a cover plate is fixed on the end of the square hole of the tie rod support away from the bearing seat a positioning pin, arranged between the bearing seat and the cover plate, one end of the positioning pin is fixedly connected with the bearing seat, and the other end is inserted into the square hole of the tie rod support; the sliding pad is sleeved on the The positioning pins are inserted into the square holes of the pull rod support; the number of adjustment plates is two, and the adjustment plates are located between the inner wall of the pull rod support and the sliding pad. The utility model should not only be able to stably and reliably limit the axial movement of the roller bearing seat, but also be able to effectively decompose the impact generated in the steel rolling process.
Description
Technical Field
The utility model relates to a hot rolling long material rolling mill technical field, concretely relates to rolling mill and roll chock axial stop device thereof.
Background
The rolling mill is used as main equipment on a steel production line and is used for rolling and forming blank parts, such as the rolling of section steel such as twisted steel, round steel, flat steel and the like. As the rolling mill is the final forming tool of the steel products, the quality of the rolling mill directly influences the quality and the production efficiency of the rolled products.
In the steel rolling process, the rolling mill is inevitably impacted by axial force, and the roller bearing block generate axial movement. In the prior art, the gap between a bearing trunnion and a pull rod support square hole is changed greatly, so that the axial movement phenomenon of a rolling mill is serious. The large axial movement can cause the problems of the aggravation of the abrasion of the rolling mill, the shortening of the service life, the processing defect of a rolled piece and the like.
In addition, during the rolling process, the energy generated by the dynamic pressure, static pressure and impact is transmitted to the roll neck through the roll body, transmitted to the chock by the roll neck and then transmitted to the roll stand. Since the roll stand is immovable, such impacts would cause significant damage to the mill if not decomposed and absorbed during the transfer.
Therefore, how to stably and reliably limit the axial play of the rolling mill and effectively decompose the impact in the steel rolling process becomes a technical problem to be solved by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a rolling mill and a roll bearing seat axial limiting device thereof, which not only can stably and reliably limit the axial movement of the rolling mill and ensure the stable rolling; and impact in the steel rolling process can be effectively decomposed, and damage to the rolling mill is reduced.
In order to achieve the above object, the utility model provides a roll chock axial stop device of rolling mill, include:
the bearing block is connected with the roller through a bearing;
the pull rod support is arranged on one side, away from the roller, of the bearing block, and a square hole with the depth direction along the radial direction of the bearing block is formed in the end part, opposite to the bearing block, of the pull rod support;
the cover plate is fixedly connected to one end, far away from the bearing block, of the square hole of the pull rod support;
the positioning pin is arranged between the bearing seat and the cover plate, one end of the positioning pin is fixedly connected with the bearing seat, and the other end of the positioning pin is inserted into the square hole of the pull rod support;
the sliding pad is sleeved on the positioning pin inserted into the square hole of the pull rod support;
the adjusting plates are arranged on the pull rod support respectively along two opposite inner walls axially arranged on the bearing seat and between the sliding pads, and the adjusting plates are fixedly connected with the pull rod support.
Preferably, the positioning pin is a cylindrical pin.
Preferably, the positioning pin is fixedly connected with the bearing seat in an interference fit manner.
Preferably, the sliding pad is of an inner circle and outer square structure, the inner wall surface of the sliding pad is attached to the outer cylindrical surface of the positioning pin, and the two outer wall surfaces corresponding to the two adjusting plates are respectively attached to the two adjusting plates.
Preferably, the cover plate is fixedly connected with the pull rod support through a screw.
Preferably, the two adjusting plates are fixedly connected with the pull rod support through screws.
Preferably, the length of the adjusting plate is equal to the length of two opposite inner walls of the pull rod support seat axially arranged along the bearing seat.
The utility model also provides a rolling mill, the rolling mill includes upper and lower roll, and every roll all installs in the rolling mill frame through two bearing frames, every be equipped with two foretell bearing frame axial stop devices on the bearing frame, two bearing frame axial stop devices about the axial symmetry of bearing frame arranges.
The utility model discloses following beneficial effect has:
according to the technical scheme, the positioning pin is inserted into the square hole of the pull rod support, and the sliding pad is sleeved on the positioning pin. When the bearing seat is subjected to axial external force and generates axial movement, the square hole of the pull rod support limits the positioning pin in the axial direction of the bearing seat. The bearing seat drives the positioning pin to rotate in the sliding pad, or drives the sliding pad to slide in the square hole of the pull rod support, so that the bending stress of the bearing seat is effectively released. The adjusting plate is used for adjusting the gap between the sliding pad and the pull rod support, so that the axial movement of the roll bearing seat is stably and reliably limited. It is easy to understand that, because the roller is arranged on the bearing block through the bearing, the axial movement of the roller is reduced while the axial movement of the bearing block is reduced, thereby ensuring the stable rolling and improving the quality of rolled materials. In addition, through the mode, the impact generated in the steel rolling process can be effectively decomposed and absorbed in the conveying process, and further the damage to the rolling mill is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural view of a rolling mill disclosed in an embodiment of the present invention;
FIG. 2 is a sectional view taken along line B-B of FIG. 1;
fig. 3 is a schematic structural view of a roll chock axial limiting device of a rolling mill disclosed in an embodiment of the present invention;
FIG. 4 is a view from the direction A of FIG. 3 (hiding the cover plate);
reference numerals
1-rolling; 2-a first adjusting plate; 3-cover plate; 4-positioning pins; 5-a sliding pad; 6-a second adjusting plate; 7-bearing seats; 8-rolling; 9-bearing seat axial limiting device; 10-square hole.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the following further detailed description of the embodiments of the present application with reference to the drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Example one
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a rolling mill disclosed in an embodiment of the present invention; fig. 2 is a sectional view taken along line B-B in fig. 1.
The shaft necks at the two ends of the roller 8 are connected with the bearing seats 7 through bearings, the roller 8 is arranged on the rolling mill through the bearing seats 7, and the upper roller 8 and the lower roller 8 are used for rolling and forming steel blank pieces. When the bearing seat 7 is impacted by axial force in the steel rolling process, the roller and the bearing seat generate axial movement, and the axial movement is serious, so that the problems of aggravated abrasion of the rolling mill, shortened service life, processing defects of rolled pieces and the like can be caused.
The utility model discloses a core thinking is spacing bearing frame 7 on its axial direction through bearing frame axial stop device 9 to alleviate the axial float of bearing frame 7, and then alleviate the axial float of roll 8.
Referring to fig. 3 and 4, fig. 3 is a schematic structural view of a roll chock axial limiting device of a rolling mill disclosed in an embodiment of the present invention; fig. 4 is a view from the direction a of fig. 3 (hiding the cover plate 3).
The utility model discloses in the roll chock axial stop device 9 of rolling mill disclosed, including pull rod support 1, bearing frame 7, apron 3, locating pin 4, sliding pad 5, first adjusting plate 2, second adjusting plate 6.
In particular, the chock 7 is connected to the roll 8 by means of bearings. The pull rod support 1 is arranged on one side, away from the roller 8, of the bearing seat 7, and the other end, away from the bearing seat 7, of the pull rod support 1 is connected with a rolling mill sliding seat in an installing mode. The end part of the pull rod support 1 opposite to the bearing seat is provided with a square hole 10 with the depth direction along the radial direction of the bearing seat, namely the depth direction of the square hole 10 is vertical to the axial direction of the bearing seat 7. The cover plate 3 is fixedly connected with one end of the pull rod support square hole 10 far away from the bearing seat 7. The locating pin 4 is arranged between the bearing seat 7 and the cover plate 3, one end of the locating pin 4 is fixedly connected with the bearing seat 7, and the other end of the locating pin is inserted into the square hole 10 of the pull rod support. The sliding pad 5 is sleeved on the positioning pin 4 inserted into the square hole 10 of the pull rod support. The number of the adjusting plates is two, namely a first adjusting plate 2 and a second adjusting plate 6 in fig. 4, the two adjusting plates are respectively arranged between two opposite inner walls of the pull rod support 1, which are arranged along the axial direction of the bearing seat, and the sliding pad 5, and the adjusting plates are fixedly connected with the pull rod support.
Referring to fig. 1 to 4, it can be seen from the above embodiment that the positioning pin 4 is inserted into the square hole 10 of the pull rod support, and the sliding pad 5 is sleeved on the positioning pin 4. When the bearing seat 7 is subjected to axial external force and generates axial movement, the square hole of the pull rod support limits the positioning pin in the axial direction of the bearing seat. The bearing seat 7 drives the positioning pin 4 to rotate in the sliding pad 5, or drives the sliding pad to slide in a square hole of the pull rod support, so that the bending stress of the bearing seat is effectively released. The gap between the sliding pad 5 and the pull rod support 1 is adjusted through the first adjusting plate 2 and the second adjusting plate 6, and the axial movement of the roll chock 7 is stably and reliably limited.
It is easy to understand that, because the roller 8 is installed on the bearing seat 7 through the bearing, the axial movement of the bearing seat 7 is reduced, and simultaneously, the axial movement of the roller 8 is reduced, thereby ensuring the stable operation of the rolling mill and improving the quality of rolled materials. In addition, through the mode, the impact generated in the steel rolling process can be effectively decomposed and absorbed in the conveying process, and further the damage to the rolling mill is reduced.
In order to further optimize the scheme, the present embodiment is further improved on the basis of the above embodiments, in the present embodiment, the positioning pin 4 is a cylindrical pin, and the positioning pin 4 is fixedly connected with the bearing seat 7 in an interference fit manner. The sliding pad 5 is of an inner circle and outer square structure, the inner wall surface of a cylinder is attached to the outer cylindrical surface of the positioning pin, and two outer wall surfaces corresponding to the first adjusting plate 2 and the second adjusting plate 6 are respectively attached to the two adjusting plates.
Referring to fig. 3 and 4, the positioning pin 4 and the sliding pad 5 are in cylindrical surface contact, so that a large acting force can be borne, abrasion is effectively reduced, and the service life of the equipment is prolonged.
More preferably, the length of the first adjusting plate 2 and the second adjusting plate 6 is equal to the length of two opposite inner walls of the tie rod support 1 arranged along the axial direction of the bearing seat.
The length of the first adjusting plate 2 and the second adjusting plate 6 is matched with the length of the square hole of the pull rod support 1. When the first adjusting plate 2 and the second adjusting plate 6 are installed, two sides of the first adjusting plate are abutted against two ends of the square hole of the pull rod support, so that the adjusting plates are more firmly fixed on the pull rod support 1.
More preferably, the first adjusting plate 2 and the second adjusting plate 6 are fixedly connected with the tie rod support 1 through screws, and are used for adjusting the gap between the sliding pad 5 and the tie rod support 1. The screw connection is convenient for assembly.
More preferably, the cover plate 3 is fixedly connected with the tie rod support 1 through screws, and is used for limiting the radial movement of the sliding pad 5 along the bearing seat 7. The screw connection is convenient for assembly.
Example two
Please refer to fig. 1 and fig. 2, the present invention further discloses a rolling mill, the rolling mill comprises a set of upper and lower rollers, each roller is mounted on the rolling mill frame through two bearing blocks 7, each bearing block 7 is provided with two axial position-limiting devices 9 of the roller bearing block disclosed in the first embodiment, and the two axial position-limiting devices 9 of the roller bearing block are arranged in axial symmetry with respect to the bearing block 7. Due to the adoption of the axial limiting device 9 of the roll bearing block disclosed in the first embodiment, the technical advantages corresponding to the axial limiting device of the roll bearing block in the first embodiment are achieved, and the detailed description is omitted.
The arrangement of the chock axial stops 9 can be clearly seen in fig. 2, where the upper roll is mounted on the rolling mill by means of two chocks 7, i.e. the upper roll is provided with four chock axial stops 9. The lower roll of the rolling mill is also provided with four axial roller chock axial stop devices 9, as is the upper roll.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. The utility model provides a roll chock axial stop device of rolling mill which characterized in that includes:
the bearing block is connected with the roller through a bearing;
the pull rod support is arranged on one side, away from the roller, of the bearing block, and a square hole with the depth direction along the radial direction of the bearing block is formed in the end part, opposite to the bearing block, of the pull rod support;
the cover plate is fixedly connected to one end, far away from the bearing block, of the square hole of the pull rod support;
the positioning pin is arranged between the bearing seat and the cover plate, one end of the positioning pin is fixedly connected with the bearing seat, and the other end of the positioning pin is inserted into the square hole of the pull rod support;
the sliding pad is sleeved on the positioning pin inserted into the square hole of the pull rod support;
the adjusting plates are arranged on the pull rod support respectively along two opposite inner walls axially arranged on the bearing seat and between the sliding pads, and the adjusting plates are fixedly connected with the pull rod support.
2. The axial stop device of roll chock of rolling mill according to claim 1, characterized in that: the positioning pin is a cylindrical pin.
3. The axial stop device of roll chocks of a rolling mill of claim 2, wherein: the positioning pin is fixedly connected with the bearing seat in an interference fit manner.
4. The axial stop device of roll chocks of a rolling mill of claim 3, wherein: the sliding pad is of an inner circle and outer square structure, the inner wall surface of the sliding pad is attached to the outer cylindrical surface of the positioning pin, and the two outer wall surfaces corresponding to the two adjusting plates are respectively attached to the two adjusting plates.
5. The axial stop device of roll chock of rolling mill according to claim 1, characterized in that: the cover plate is fixedly connected with the pull rod support through screws.
6. The axial stop device of roll chock of rolling mill according to claim 1, characterized in that: the two adjusting plates are fixedly connected with the pull rod support through screws.
7. The axial stop device of roll chock of rolling mill according to claim 1, characterized in that: the length of the adjusting plate is equal to the length of two opposite inner walls of the pull rod support seat which are axially arranged along the bearing seat.
8. A rolling mill, the rolling mill includes upper and lower roll, and every roll all installs on the rolling mill frame through two bearing frame, its characterized in that: two roll chock axial stops as claimed in any one of claims 1 to 7 are provided on each chock, the two roll chock axial stops being symmetrically arranged about the axis of the chock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022229627.8U CN213378497U (en) | 2020-10-09 | 2020-10-09 | A rolling mill and its axial limiting device for a roll bearing seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022229627.8U CN213378497U (en) | 2020-10-09 | 2020-10-09 | A rolling mill and its axial limiting device for a roll bearing seat |
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| CN213378497U true CN213378497U (en) | 2021-06-08 |
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| CN202022229627.8U Active CN213378497U (en) | 2020-10-09 | 2020-10-09 | A rolling mill and its axial limiting device for a roll bearing seat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191687A (en) * | 2020-10-09 | 2021-01-08 | 安徽中钢诺泰工程技术有限公司 | Rolling mill and roll chock axial stop device thereof |
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- 2020-10-09 CN CN202022229627.8U patent/CN213378497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191687A (en) * | 2020-10-09 | 2021-01-08 | 安徽中钢诺泰工程技术有限公司 | Rolling mill and roll chock axial stop device thereof |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 243071 No. 199 Jinshanhu Road, Economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee after: Anhui Nuotai Engineering Technology Co.,Ltd. Country or region after: China Address before: 243071 building 3, No. 669, Chaoshan West Road, Maanshan economic and Technological Development Zone (Demonstration Park), Maanshan City, Anhui Province Patentee before: Anhui Sinosteel Nuotai Engineering Technology Co.,Ltd. Country or region before: China |
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