CN211330743U - Pinch roll composite roll collar and assembling device thereof - Google Patents
Pinch roll composite roll collar and assembling device thereof Download PDFInfo
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- CN211330743U CN211330743U CN201921440630.5U CN201921440630U CN211330743U CN 211330743 U CN211330743 U CN 211330743U CN 201921440630 U CN201921440630 U CN 201921440630U CN 211330743 U CN211330743 U CN 211330743U
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- connecting ring
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Abstract
The utility model relates to a compound collars of pinch roll and assembly quality thereof, this compound collars of pinch roll, including useless collars and go-between, the outer disc of go-between with the interior disc interference fit of useless collars is connected, the interior disc of go-between is used for laminating with pinch roll shaft face. The waste roll collars are reused by compounding the connecting rings and the waste roll collars, so that the utilization rate of the roll collars in a steel rolling mill is improved, and the production cost of the roll collars is obviously reduced; in addition, the assembling device for the pinch roll composite roll collar can accelerate the assembling time of the waste roll collar and the connecting ring, and obviously improve the assembling precision of the waste roll collar and the connecting ring.
Description
Technical Field
The utility model relates to a steel rolling altitude production field especially relates to a compound collars of pinch roll and assembly quality thereof.
Background
The pinch roll is a key device for providing power for a rolled piece on a high-speed production line of a steel rolling mill, enabling the rolled piece to run stably, controlling the running speed of the tail part of the rolled piece and ensuring the smooth spinning of the rolled piece.
At present, the roll ring used by the pinch roll is a special roll ring with the diameter of 210 x phi 94 x 71.7mm, the roll ring used by the finishing mill is a special roll ring with the diameter of 230 x phi 130 x 71.7mm, and the roll ring is directly replaced by a new roll ring after being scrapped, so that the consumption of the roll ring is greatly increased.
The application provides a compound collars of pinch roll and assembly quality thereof can reuse the condemned useless collars of finishing mill to the pinch roll collars, has reduced the new collars consumption of steel mill to manufacturing cost has been reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a remedy prior art not enough, provide a compound collars of pinch roll and assembly quality thereof, can recycle useless collars, reach reduction in production cost's purpose, solved the problem that exists among the prior art.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:
the composite roll collar of the pinch roll comprises a waste roll collar and a connecting ring, wherein the outer circular surface of the connecting ring is in interference fit connection with the inner circular surface of the waste roll collar, and the inner circular surface of the connecting ring is used for being attached to the roll shaft surface of the pinch roll.
Preferably, the waste roll collar is made of tungsten carbide, the connecting ring is made of stainless steel, and the interference magnitude between the connecting ring and the waste roll collar is 0.04mm-0.07 mm.
The assembling device for the pinch roll composite roll collar comprises an assembling base, wherein the top surface of the assembling base is a plane, a groove is formed in the top of the assembling base, the distance from the center of the groove to the side wall of the groove is larger than the outer diameter of the connecting ring, and the distance from the center of the groove to the side wall of the groove is smaller than the outer diameter of the waste roll collar.
Preferably, in order to accurately place the waste roll collar, a circular mark is arranged on the assembling base on the peripheral side of the groove, the circle center of the circular mark is the center of the groove, and the radius of the circular mark is equal to the outer diameter of the waste roll collar. When the waste roll collar is placed, the outer edge of the waste roll collar just covers the round mark on the top of the assembling base.
The replaceable waste roll collar can be accurately placed, an arc limiting plate can be further arranged on the assembly base on the periphery side of the groove, the arc center of the arc limiting plate is the center of the groove, the radius of the arc limiting plate is equal to the outer diameter of the waste roll collar, the central angle of the arc limiting plate is smaller than 180 degrees, and when the waste roll collar is placed, the outer circular surface of the waste roll collar is attached to the inner arc surface of the arc limiting plate.
Preferably, the groove is a circular groove.
Preferably, in order to assemble the stability of base, still can connect a fixed plate at assembly base bottom, seted up the bolt hole on the fixed plate, during the use, can pass through bolt fastening with assembly base.
The assembly method of the pinch roll composite roll collar comprises the following steps:
(1) selecting materials: selecting waste roll collars scrapped by a finishing mill and connecting rings with the length larger than that of the waste roll collars, measuring the size of inner holes of the waste roll collars and the size of outer diameters of the connecting rings, and ensuring that the difference between the size of the outer diameters of the connecting rings and the size of the inner diameters of the waste roll collars is between 0.04 and 0.07 mm;
(2) and (3) cooling: the connecting ring is placed in a liquid nitrogen environment for cooling, wherein the cooling time of the connecting ring in the liquid nitrogen environment is not less than 5 min;
(3) assembling: placing the waste roll collar on an assembly device, placing an inner hole of the waste roll collar corresponding to the groove of the assembly base, taking out the connecting ring cooled in the step (2), and assembling the connecting ring and the waste roll collar, so that the connecting ring penetrates through the waste roll collar, and two ends of the connecting ring respectively extend out of two ends of the waste roll collar;
(4) and (4) cutting, namely installing the connecting ring and the waste roll ring assembled in the step (4) on a machine tool, turning the connecting ring extending out of the end face of the waste roll ring by using a lathe tool to enable the section of the connecting ring to be flush with the end face of the waste roll ring, and then assembling the pinch roll by using the composite roll ring.
And (4) during assembly in the step (3), placing the waste roll collar at the top of the assembly base, enabling the inner hole of the waste roll collar to correspond to the groove of the assembly base, and covering the circular mark at the top of the assembly base by the outer edge of the waste roll collar. Or the outer circular surface of the waste roll collar is attached to the inner arc surface of the arc limiting plate.
In the step (4), when the connecting ring and the waste roll collar are assembled and the connecting ring is difficult to penetrate through the waste roll collar, the lower end of the connecting ring can be pressed into the groove of the assembling base by using the hydraulic press, specifically, the assembling base is placed below the hydraulic press, and the connecting ring is pressed by the pressing plate fixedly connected with the output end of the hydraulic press, so that the connecting ring penetrates through the waste roll collar.
The utility model adopts the above structure, the advantage that has is:
1. the finishing mill collars wear and tear and scrap to waste the collars when the diameter is less than 205mm, because the reduction of collars rolling strength, lead to it can't continue to use, and the diameter of pinch roll collars is equivalent to wearing and tearing back waste collar diameter, consequently, this application proposes to recycle waste collars, because pinch roll strength of use is less than finishing mill collars, consequently this application adopts stainless steel go-between and waste collars compound formation can be applied to the compound collars on the pinch roll, is showing and has reduced steel mill manufacturing cost.
2. For the assembly of the waste roll collar and the connecting ring, the assembling method and the assembling device can be used for shortening the assembling time of the waste roll collar and the connecting ring and remarkably improving the assembling precision of the waste roll collar and the connecting ring.
Drawings
FIG. 1 is a schematic structural view of the composite roll collar of the present invention;
FIG. 2 is a schematic structural view of an assembly apparatus according to the present invention;
FIG. 3 is a schematic structural view of another assembly apparatus used in the present invention;
fig. 4 is a schematic structural view of fig. 3 used in cooperation with a hydraulic pressing device.
In the figure, the device comprises a waste roller ring 1, a waste roller ring 2, a connecting ring 3, an assembly base 4, a groove 5, a circular mark 6, an arc limiting plate 7, a fixing plate 8, a bolt hole 9, a hydraulic press 10 and a pressing plate.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
As shown in fig. 1, the pinch roll composite roll collar comprises a waste roll collar 1 and a connecting ring 2, wherein the outer circular surface of the connecting ring 2 is in interference fit connection with the inner circular surface of the waste roll collar 1, and the inner circular surface of the connecting ring 2 is used for being attached to the roll shaft surface of a pinch roll. The waste roll collar 1 is made of tungsten carbide, the connecting ring 2 is made of stainless steel, and the interference magnitude between the connecting ring 2 and the waste roll collar 1 is 0.04mm-0.07 mm.
As shown in fig. 2-3, the assembling device for the pinch roll composite roll collar comprises an assembling base 3, wherein the top surface of the assembling base 3 is a plane, a groove 4 is formed in the top of the assembling base 3, the distance from the center of the groove to the side wall of the groove is greater than the outer diameter of the connecting ring 2, and the distance from the center of the groove to the side wall of the groove is less than the outer diameter of the waste roll collar 1. Wherein, the groove 4 is a circular groove.
Understandably, in order to accurately place the waste roll ring 1, a circular mark 5 is arranged on the assembling base 3 on the peripheral side of the groove 4, the circle center of the circular mark 5 is the center of the groove, and the radius of the circular mark 5 is equal to the outer diameter of the waste roll ring 1. Wherein the waste roll collar 1 is placed such that the outer edge of the waste roll collar 1 just covers the circular mark 5 (see fig. 2) on the top of the mounting base 3.
Understandably, for accurately placing useless collars 1, still be equipped with an arc limiting plate 6 on the assembly base 3 of recess 4 week side, the arc center of arc limiting plate 6 does the center of recess 4, the radius of arc limiting plate 6 equals the external diameter of useless collars 4, the central angle of arc limiting plate 6 is less than 180 degrees, and wherein, when useless collars 4 placed, the outer disc that makes useless collars 4 and the interior cambered surface laminating of arc limiting plate 6 (as figure 3).
Understandably, in order to stabilize the assembly base 3, the bottom of the assembly base 3 can be further connected with a fixing plate 7, the fixing plate 7 is provided with a bolt hole 8, and the assembly base 3 can be fixed through a bolt when in use.
The assembly method of the pinch roll composite roll collar comprises the following steps:
(1) selecting materials: firstly, placing the waste roll collar 1 on an assembly device, then taking out the connecting ring 2 cooled in the step (2) and assembling the connecting ring 2 with the waste roll collar 1, so that the connecting ring 2 penetrates through the waste roll collar 1, and two ends of the connecting ring 2 respectively extend out of two ends of the waste roll collar 1;
(2) and (3) cooling: the connecting ring 2 is placed in a liquid nitrogen environment for cooling, wherein the cooling time of the connecting ring 2 in the liquid nitrogen environment is not less than 5 min;
(3) assembling: firstly, placing the waste roll collar 1 on an assembling device, then taking out the connecting ring 2 cooled in the step (2) and assembling the connecting ring 2 with the waste roll collar 1, so that the connecting ring 2 penetrates through the waste roll collar 1, and two ends of the connecting ring 2 respectively extend out of two ends of the waste roll collar 1;
(4) cutting: and (4) cutting, namely installing the connecting ring 2 and the waste roll ring 1 assembled in the step (4) on a machine tool, turning the connecting ring 2 extending out of the end face part of the waste roll ring 1 by using a lathe tool to enable the section of the connecting ring 2 to be flush with the end face of the waste roll ring 1, and then assembling the pinch roll by using the composite roll ring.
In the step (4), when the connecting ring and the waste roller ring are assembled and the connecting ring is difficult to penetrate through the waste roller ring, the lower end of the connecting ring can be pressed into the groove of the assembling base by using the hydraulic press, specifically, the assembling base is placed below the hydraulic press, and the connecting ring is pressed by the pressing plate fixedly connected with the output end of the hydraulic press, so that the connecting ring penetrates through the waste roller ring (as shown in fig. 4).
The above-mentioned embodiments can not be regarded as the limitation to the protection scope of the present invention, and to those skilled in the art, it is right that any alternative improvement or transformation made by the embodiments of the present invention all fall within the protection scope of the present invention. The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (7)
1. The composite roll collar of the pinch roll is characterized by comprising a waste roll collar and a connecting ring, wherein the outer circular surface of the connecting ring is in interference fit connection with the inner circular surface of the waste roll collar, and the inner circular surface of the connecting ring is used for being attached to the roll shaft surface of the pinch roll.
2. The pinch roll composite roll collar of claim 1, wherein the waste roll collar is made of tungsten carbide, the connecting ring is made of stainless steel, and the interference between the connecting ring and the waste roll collar is 0.04mm-0.07 mm.
3. The assembling device for the pinch roll composite roll collar as claimed in claim 1 or 2, which is characterized by comprising an assembling base, wherein the top surface of the assembling base is a plane, a groove is formed in the top of the assembling base, the distance from the center of the groove to the side wall of the groove is greater than the outer diameter of the connecting ring, and the distance from the center of the groove to the side wall of the groove is less than the outer diameter of the waste roll collar.
4. The assembling device of the pinch roll composite roll collar as claimed in claim 3, wherein a circular mark is provided on the assembling base on the peripheral side of the groove, the center of the circular mark is the center of the groove, and the radius of the circular mark is equal to the outer diameter of the waste roll collar.
5. The assembling device for the pinch roll composite roll collar according to claim 3, wherein an arc limiting plate is arranged on the assembling base on the peripheral side of the groove, the arc center of the arc limiting plate is the center of the groove, the radius of the arc limiting plate is equal to the outer diameter of the waste roll collar, and the central angle of the arc limiting plate is less than 180 degrees.
6. The assembling device for the pinch roll composite roll collar as claimed in claim 4 or 5, wherein the groove is a circular groove.
7. The assembling device for the pinch roll composite roll collar as claimed in claim 4 or 5, wherein a fixing plate is connected to the bottom of the assembling base, and a bolt hole is formed in the fixing plate on the side of the assembling base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440630.5U CN211330743U (en) | 2019-08-30 | 2019-08-30 | Pinch roll composite roll collar and assembling device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440630.5U CN211330743U (en) | 2019-08-30 | 2019-08-30 | Pinch roll composite roll collar and assembling device thereof |
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| Publication Number | Publication Date |
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| CN211330743U true CN211330743U (en) | 2020-08-25 |
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| CN201921440630.5U Active CN211330743U (en) | 2019-08-30 | 2019-08-30 | Pinch roll composite roll collar and assembling device thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586664A (en) * | 2019-08-30 | 2019-12-20 | 石横特钢集团有限公司 | Pinch roll composite roll collar and assembling method thereof |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586664A (en) * | 2019-08-30 | 2019-12-20 | 石横特钢集团有限公司 | Pinch roll composite roll collar and assembling method thereof |
| CN110586664B (en) * | 2019-08-30 | 2024-04-12 | 石横特钢集团有限公司 | Pinch roll composite roll collar and assembly method thereof |
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