CN115921534A - Working roll water retaining device of hot continuous rolling roughing mill and mounting method thereof - Google Patents
Working roll water retaining device of hot continuous rolling roughing mill and mounting method thereof Download PDFInfo
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- CN115921534A CN115921534A CN202211350876.XA CN202211350876A CN115921534A CN 115921534 A CN115921534 A CN 115921534A CN 202211350876 A CN202211350876 A CN 202211350876A CN 115921534 A CN115921534 A CN 115921534A
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Abstract
The invention provides a working roll water retaining device of a hot continuous rolling roughing mill and an installation method thereof, relating to the technical field of steel rolling mechanical equipment, wherein the device comprises: the metal guard plate, the water baffle, the fastening bolt and the high-temperature-resistant wear-resisting plate are arranged in the groove of the bearing box of the roller; the metal protection plate is provided with a first bolt hole, the water baffle is provided with a second bolt hole, the high-temperature-resistant wear-resistant plate is provided with a third bolt hole, and the fastening bolt penetrates through the second bolt hole, the third bolt hole and the first bolt hole in sequence and then fixes the high-temperature-resistant wear-resistant plate and the water baffle on the metal protection plate. The invention adopts the double slag-stopping and water-retaining combination of the resin plate and the high-temperature-resistant wear-resisting plate, not only solves the problem of poor water-retaining effect of the resin plate, but also avoids the accidental damage of the high-temperature-resistant wear-resisting plate, reduces the uneven cooling of the intermediate billet, improves the shape precision of the intermediate billet, improves the precision rolling stability, simultaneously ensures that the performance of the strip steel meets the requirements, and improves the product quality.
Description
Technical Field
The invention relates to the technical field of steel rolling mechanical equipment, in particular to a working roll water retaining device of a hot continuous rolling roughing mill and an installation method thereof.
Background
The working roll of the roughing mill of the hot rolling production line is reversible rolling, and the rotating direction of the roll is switched in a forward direction and a reverse direction. When rolling steel, high-pressure water is sprayed on the surface of the roll to cool the roll, but the leakage of cooling water to the billet being rolled is required to be as small as possible, and if the leakage of cooling water to the hot billet being rolled is too much, the surface quality of the steel plate rolled in the subsequent cold rolling process is affected, so that a water baffle plate is required to be arranged on the roll to block the cooling water.
The water baffle of the working roll of the prior roughing mill is generally made of metal materials, water baffles, wear-resistant rubber plates and the like. After the water baffle made of metal materials is installed and used, the gap between the water baffle and the roll surface of the roll is 3-5 mm, so that the water leakage of a rolling mill is serious, and the rolling stability, quality and performance of the strip steel are greatly influenced; although the water baffle of the resin plate is tightly attached to the surface of the roller when being installed, the water baffle of the resin plate is abraded, damaged greatly and unevenly under the action of high temperature, iron scale, iron slag and thermal expansion of the roller due to high rolling temperature, so that after rolling for a period of time, the water leakage phenomenon of a rolling mill occurs and becomes more serious along with the time extension; the water baffle of the wear-resistant rubber plate is tightly attached to a roller during installation, part of the water baffle is overlapped with the roller surface of the roller, the contact area is increased, the water sealing effect is improved, the wear-resistant rubber plate is greatly damaged under the action of high temperature, iron scales and iron slag, especially, the damage degree of the part overlapped with the roller is heavy, meanwhile, the roller of a roughing mill is capable of reversing rolling, and when the roller is switched in the rotating direction, the edge and the corner of the overlapped part of the wear-resistant rubber plate and the roller can be folded, the abrasion-resistant rubber plate is seriously broken, the abrasion-resistant rubber plate is damaged, and the water leakage of the rolling mill is serious. The water leakage of the rolling mill can cause the uneven temperature drop of the strip steel, has great influence on the stability of the later rolling and also has great influence on the quality and the product performance of the strip steel. In conclusion, the water retaining device without water leakage is invented.
Disclosure of Invention
According to the technical problem that the water leakage of the water baffle of the working roll of the existing roughing mill is serious, the water baffle device of the working roll of the hot continuous rolling roughing mill and the installation method thereof are provided. The invention mainly adopts the double slag-blocking and water-blocking combination of the resin plate and the high-temperature-resistant wear-resisting plate, thereby achieving the purpose of improving the water-blocking effect of the water-blocking plate of the working roll of the hot continuous rolling roughing mill.
The technical means adopted by the invention are as follows:
a kind of hot tandem rolling roughing mill working roll water retaining device, including: the metal guard plate, the water baffle, the fastening bolt and the high-temperature-resistant wear-resisting plate are arranged in a groove of a bearing box of the roller; the metal guard plate is provided with a first bolt hole, the water baffle is provided with a second bolt hole, the high-temperature-resistant wear-resisting plate is provided with a third bolt hole, and the fastening bolt sequentially penetrates through the second bolt hole, the third bolt hole and the first bolt hole and then fixes the high-temperature-resistant wear-resisting plate and the water baffle on the metal guard plate.
Further, the length of breakwater and high temperature resistant antifriction plate satisfies:
l 1 ＝l 2 ＝l 3 +a
wherein: l 1 Is the length of the water baffle plate l 2 Length of high-temperature-resistant wear-resisting plate, /) 3 The length of the roller body is taken as the length,a is 10-20 mm.
Further, the length of the first bolt hole is 10-30 mm.
Further, the width of the water baffle satisfies:
w 1 ＝h 1 +h 2 +h 3 +b
wherein, w 1 Width of the water baffle, h 1 Is the second bolt hole length, h 2 The distance h from the second bolt hole to the end face of the water baffle on the non-working side 3 The vertical distance from the first bolt hole to the roll surface of the roll, b the joint amount of the working side of the water baffle and the roll surface of the roll, and h 1 Is 10-30mm in length of h 2 20-40mm, b 5-10 mm;
the width of the high-temperature-resistant wear-resisting plate meets the following requirements:
w 2 ＝w 1 +c
wherein w 2 C is the width of the high-temperature resistant wear-resisting plate and is 30-70 mm.
Furthermore, the thickness t of the water baffle plate 1 Is 10-20 mm;
the thickness t of the high-temperature resistant and wear-resistant plate 2 Comprises the following steps:
wherein: h is a total of 4 The clearance between the metal guard plate and the roller surface of the roller, and d is 1-3 mm.
Furthermore, the bonding amount of the high-temperature resistant wear-resisting plate and the roller is 10-20 mm;
the angle of the joint position of the water baffle and the roller is 20-40 degrees, and the angle of the joint position of the high-temperature resistant wear-resisting plate and the roller is 20-40 degrees.
Further, the second bolt hole is rectangular, and the third bolt hole is circular.
A method for installing a working roll water retaining device of a hot continuous rolling roughing mill is realized based on the working roll water retaining device of the hot continuous rolling roughing mill, and comprises the following steps:
sequentially placing the high-temperature-resistant wear-resistant plate and the water baffle plate on the metal guard plate, and aligning the second bolt hole, the third bolt hole and the first bolt hole;
sequentially passing the fastening bolt through the second bolt hole, the third bolt hole and the first bolt hole;
the water baffle is moved up and down to ensure that the joint quantity of the water baffle and the roller surface of the roller is in accordance with 5-10 mm;
tightening the fastening bolt;
mounting the fixed high-temperature-resistant wear-resisting plate, the water baffle and the metal guard plate in a groove of a bearing box of the roller, bending the high-temperature-resistant wear-resisting plate inwards and attaching the high-temperature-resistant wear-resisting plate to the roller surface of the roller, and attaching the water baffle to the roller surface of the roller;
and locking bolts at two sides of the metal guard plate to prevent the metal guard plate from moving.
Compared with the prior art, the invention has the following advantages:
the double water retaining device utilizes the roller metal protective plate, and the water retaining plate and the high-temperature resistant wear-resisting plate are arranged on the double water retaining device, wherein the water retaining plate can retain water, can block iron scales and iron slag to prevent the high-temperature resistant wear-resisting plate from being damaged, and can also suppress the high-temperature resistant wear-resisting plate to prevent the high-temperature resistant wear-resisting plate from being damaged by folding.
The invention discloses a width relation and a value range of a water baffle and a high-temperature-resistant wear-resisting plate, which can prevent a rubber plate from being broken and twisted and enable the rubber plate to be tightly attached to a roller under the condition.
The invention discloses a range of the joint amount of a high-temperature resistant wear-resisting plate and a roller and a range of the joint position angle of a water baffle plate, the high-temperature resistant wear-resisting plate and the roller.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of the present invention.
FIG. 2 is a top view of the present invention.
In the figure: 1. rolling; 2. a metal guard plate; 3. a water baffle; 4. fastening a bolt; 5. high temperature resistant antifriction plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the absence of any contrary indication, these directional terms are not intended to indicate and imply that the device or element so referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be considered as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
For ease of description, spatially relative terms such as "above … …", "above … …", "above … … upper surface", "above", etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
As shown in fig. 1-2, the present invention provides a water retaining device for a work roll of a hot continuous rolling roughing mill, comprising: the metal guard plate 2, the water baffle 3, the fastening bolt 4 and the high-temperature-resistant wear-resisting plate 5 are arranged in a groove of a bearing box of the roller 1; the metal protection plate 2 is provided with a first bolt hole, the water baffle 3 is provided with a second bolt hole, the high-temperature-resistant wear-resistant plate 5 is provided with a third bolt hole, and the fastening bolt 4 penetrates through the second bolt hole, the third bolt hole and the first bolt hole in sequence and then fixes the high-temperature-resistant wear-resistant plate 5 and the water baffle 3 on the metal protection plate 2. The water baffle 3 is a resin water baffle. The high-temperature resistant wear-resisting plate 5 is a rubber plate.
The length of the water baffle 3 and the high temperature resistant wear-resisting plate 5 meets the following requirements:
l 1 ＝l 2 ＝l 3 +a
wherein: l 1 Is the length l of the water baffle 3 2 Length l of high temperature resistant wear plate 5 3 The length of the roller body is shown, and a is 10-20 mm. So as to ensure that the cooling water of the roller flows out from the two sides of the roller and prevent the cooling water from leaking on the surface of strip steel;
the length of the first bolt hole is 10-30 mm. The water baffle 3 can be used continuously after being worn, so that the material loss is reduced, and the service life is prolonged.
The width of the water baffle 3 satisfies:
w 1 ＝h 1 +h 2 +h 3 +b
wherein, w 1 Width h of the splash plate 3 1 Is the second bolt hole width, h 2 The distance h from the second bolt hole to the end face of the water baffle on the non-working side 3 The vertical distance from the first bolt hole to the roller surface of the roller, b is the joint amount of the working side of the water baffle 3 and the roller surface of the roller, and h 1 Is 10-30mm in length of h 2 20-40mm, b 5-10 mm;
the width of the high-temperature-resistant wear-resisting plate 5 satisfies the following requirements:
w 2 ＝w 1 +c
wherein, w 2 C is 30-70 mm for the width of the high temperature resistant wear plate 5.
Thickness t of the water baffle 3 1 10-20 mm;
thickness t of the high temperature resistant wear plate 5 2 Comprises the following steps:
wherein: h is 4 The clearance between the metal guard plate 2 and the roller surface of the roller, and d is 1-3 mm.
The bonding amount of the high-temperature resistant wear-resisting plate 5 and the roller is 10-20 mm;
the angle of the bonding position of the water baffle 3 and the roller is 20-40 degrees, and the angle of the high-temperature resistant wear-resisting plate 5 and the bonding position of the roller is 20-40 degrees.
The invention also provides an installation method of the working roll water retaining device of the hot continuous rolling roughing mill, which is realized based on the working roll water retaining device of the hot continuous rolling roughing mill and comprises the following steps:
the metal guard plate 2 is provided with bolt holes for fixing the water baffle 3 and the high-temperature-resistant wear-resisting plate 5, a second bolt hole of the water baffle 3 can also be made into a countersunk head, and the second bolt hole is rectangular, so that the water baffle 3 and the roll surface of the roll 1 can be continuously used after being worn;
arranging a third bolt hole of the high-temperature-resistant wear-resisting plate 5 as a round hole, placing the round hole on the metal protection plate 2 to be aligned with the first bolt hole, then placing the water baffle 3 on the high-temperature-resistant wear-resisting plate, aligning the second bolt hole, then screwing the fastening bolt 4 into the bolt hole of the metal protection plate through the resin plate and the high-temperature-resistant wear-resisting plate, moving the water baffle 2 up and down to ensure that the joint quantity of the water baffle and the roll surface of the roll meets the requirement, and finally screwing the fastening bolt 4;
install two sections metal protection plate 2 in 1 bearing housing recess of roll, guarantee high temperature resistant antifriction plate 5 incurving to in 1 roll surface laminating of roll, breakwater 2 and 1 roll surface laminating of roll, then lock 2 both sides bolts of metal protection plate, prevent its drunkenness.
Because the high-temperature-resistant wear-resisting plate 5 is made of soft material and has a certain length coincident with the roll surface of the roll 1, the hot continuous rolling roughing mill is reversible rolling, corner parts or a certain length are bent and rolled into the other side when the roll rotates and reverses, the high-temperature-resistant wear-resisting plate 5 is damaged, the water retaining performance is weakened, the water retaining plate 2 is additionally arranged on the high-temperature-resistant wear-resisting plate 5, the high-temperature-resistant wear-resisting plate 5 is prevented from being rolled into the gap of the rolling mill and has the function of retaining water at the first level, after the roll 1 generates thermal expansion and the water retaining plate 2 is abraded to form a gap, the high-temperature-resistant wear-resisting plate 5 can play the function of retaining water at the second level, the leakage of cooling water of the roughing mill roll is effectively prevented, the purpose that the cooling water of the roughing mill roll is not leaked is realized, the water leakage problem of the working roll of the roughing mill is solved, the production requirement is met, the roughing temperature drop is greatly reduced, the energy consumption is reduced, and greater benefit is created for enterprises.
Examples
A kind of hot tandem rolling roughing mill working roll water retaining device, including: the metal guard plate 2, the water baffle 3, the fastening bolt 4 and the high-temperature-resistant wear-resisting plate 5 are arranged in a groove of a bearing box of the roller 1; the metal protection plate 2 is provided with a first bolt hole, the water baffle 3 is provided with a second bolt hole, the high-temperature-resistant wear-resistant plate 5 is provided with a third bolt hole, and the fastening bolt 4 penetrates through the second bolt hole, the third bolt hole and the first bolt hole in sequence and then fixes the high-temperature-resistant wear-resistant plate 5 and the water baffle 3 on the metal protection plate 2. The length 1590mm and the width 110mm of the splash plate 3. The length of the second bolt hole is 25mm, and the thickness of the second bolt hole is 20mm; the high temperature resistant wear plate 5 has a length 1590mm, a width 150mm and a thickness 5mm. The joint position angle of the water baffle 3 and the high-temperature resistant wear-resisting plate 5 and the roller 1 is 20 degrees. According to the installation method, a high-temperature-resistant wear-resistant plate 5 and a water baffle 3 are installed on the upper metal guard plate 2 and the lower metal guard plate 2 of the working roll, countersunk bolt holes with the depth of 5mm are formed in the water baffle 3, anti-loosening gaskets are added, and bolts are screwed down.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a hot continuous rolling roughing mill working roll water retaining device which characterized in that includes: the metal guard plate (2), the water baffle plate (3), the fastening bolt (4) and the high-temperature-resistant wear-resisting plate (5) are arranged in a groove of a bearing box of the roller (1); the high-temperature-resistant wear-resistant plate is characterized in that a first bolt hole is formed in the metal protection plate (2), a second bolt hole is formed in the water baffle plate (3), a third bolt hole is formed in the high-temperature-resistant wear-resistant plate (5), and the fastening bolt (4) penetrates through the second bolt hole, the third bolt hole and the first bolt hole in sequence and then fixes the high-temperature-resistant wear-resistant plate (5) and the water baffle plate (3) on the metal protection plate (2).
2. The water retaining device for work rolls of hot continuous roughing mills according to claim 1,
the length of the water baffle (3) and the high-temperature resistant wear-resisting plate (5) meets the following requirements:
l 1 ＝l 2 ＝l 3 +a
wherein: l 1 Is the length of the water baffle (3) | 2 Length of high temperature resistant wear-resisting plate (5) | 3 The length of the roller body is shown, and a is 10-20 mm.
3. The water retaining device for the work roll of the hot continuous roughing mill according to claim 1, characterized in that: the length of the first bolt hole is 10-30 mm.
4. The water retaining device for work rolls of hot continuous roughing mills according to claim 1,
the width of the water baffle (3) meets the following requirements:
w 1 ＝h 1 +h 2 +h 3 +b
wherein, w 1 The width of the water baffle (3), h 1 Is the second bolt hole length, h 2 The distance h from the second bolt hole to the end face of the water baffle on the non-working side 3 The vertical distance from the first bolt hole to the roll surface of the roll, b is the joint amount of the working side of the water baffle (3) and the roll surface of the roll, h 1 Is 10-30mm 2 20-40mm, b 5-10 mm;
the width of the high-temperature-resistant wear-resisting plate (5) meets the following requirements:
w 2 ＝w 1 +c
wherein, w 2 C is the width of the high-temperature resistant wear-resisting plate (5) and is 30-70 mm.
5. The water retaining device for the work roll of the hot continuous roughing mill according to claim 1, characterized in that:
the thickness t of the water baffle (3) 1 10-20 mm;
the thickness t of the high-temperature resistant wear-resisting plate (5) 2 Comprises the following steps:
wherein: h is 4 The clearance between the metal guard plate (2) and the roll surface of the roll, and d is 1-3 mm.
6. The water retaining device for the work roll of the hot continuous roughing mill according to claim 1, characterized in that:
the bonding amount of the high-temperature resistant wear-resisting plate (5) and the roller is 10-20 mm;
the angle of the bonding position of the water baffle (3) and the roller is 20-40 degrees, and the angle of the bonding position of the high-temperature resistant wear-resisting plate (5) and the roller is 20-40 degrees.
7. The water retaining device for the work roll of the hot continuous roughing mill according to claim 1, characterized in that: the second bolt hole is rectangular, and the third bolt hole is circular.
8. An installation method of a water retaining device for a working roll of a hot continuous rolling roughing mill is realized based on the water retaining device for the working roll of the hot continuous rolling roughing mill of claims 1 to 7, and is characterized by comprising the following steps:
sequentially placing the high-temperature-resistant wear-resisting plate (5) and the water baffle (3) on the metal guard plate (2) to align the second bolt hole, the third bolt hole and the first bolt hole;
sequentially passing the fastening bolt (4) through the second bolt hole, the third bolt hole and the first bolt hole;
the water baffle (3) moves up and down to ensure that the joint quantity of the water baffle (3) and the roll surface of the roll is in accordance with 5-10 mm;
tightening the fastening bolt (4);
the fixed high-temperature-resistant wear-resisting plate (5), the water baffle plate (3) and the metal guard plate (2) are arranged in a groove of a bearing box of the roller, so that the high-temperature-resistant wear-resisting plate (5) is bent inwards and is attached to the roller surface of the roller, and the water baffle plate (3) is attached to the roller surface of the roller;
bolts at two sides of the metal guard plate (2) are locked to prevent the metal guard plate (2) from moving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211350876.XA CN115921534A (en) | 2022-10-31 | 2022-10-31 | Working roll water retaining device of hot continuous rolling roughing mill and mounting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211350876.XA CN115921534A (en) | 2022-10-31 | 2022-10-31 | Working roll water retaining device of hot continuous rolling roughing mill and mounting method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115921534A true CN115921534A (en) | 2023-04-07 |
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ID=86551400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211350876.XA Pending CN115921534A (en) | 2022-10-31 | 2022-10-31 | Working roll water retaining device of hot continuous rolling roughing mill and mounting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115921534A (en) |
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2022
- 2022-10-31 CN CN202211350876.XA patent/CN115921534A/en active Pending
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