Fixing frame structure for water cutting plate of hot rolling mill

Abstract

The utility model relates to the technical field of water cutting plate fixing frames, and discloses a fixing frame structure for a water cutting plate of a hot rolling mill, which comprises an upper working roll, a lower working roll, a plate blank and two fixing supports, a collecting and protecting mechanism is arranged outside the fixing supports, a cooling mechanism is arranged outside the fixing supports, and the collecting and protecting mechanism is connected with the cooling mechanism. Water cutting plates are arranged at the ends, close to the upper working roller, of the two fixing supports, a containing interval is formed between a connecting baffle and the fixing supports, arrangement and placement of a spraying pipe B are facilitated, the situation that parts fall from the edge to accidentally injure operators is avoided through side baffles, rolling foreign matter is stored in a containing groove, and the safety of the spraying pipe B is improved. The worm is meshed with the worm gear, so that the intercepting plate rotates to be parallel to the connecting baffle, foreign matter can be taken out more conveniently, water cools the upper working roller and the lower working roller, the problems that the upper working roller and the lower working roller generate hot cracks and the service life is shortened when the upper working roller and the lower working roller are located under the high-temperature condition for a long time are solved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of water cutting plate fixing frames, and specifically relates to a fixing frame structure for a water cutting plate of a hot rolling mill. Background Art

[0002] The hot rolling roll is one of the important equipment on the rolling mill. It is in the working conditions of high temperature, high stress and water vapor for a long time, and is extremely prone to thermal cracks, shortening the service life of the roll. To prevent the generation of thermal cracks, a new fixing frame structure for the water cutting plate of the hot rolling mill is needed.

[0003] According to the description in the fixing frame structure for the water cutting plate of a hot rolling mill disclosed on the patent network (the authorization announcement number is: CN215965510U), "The utility model relates to the field of water cutting plate fixing frames. Specifically, it is a fixing frame structure for the water cutting plate of a hot rolling mill, including a fixing mechanism. The fixing mechanism includes a fixing bracket connected to the water cutting plate; the fixing bracket is connected with a connecting baffle, and the connecting baffle is distributed at intervals with the fixing bracket; a placement gap for arranging the cooling header is formed between the upper fixing bracket and the upper baffle. The utility model discloses a fixing frame structure for the water cutting plate of a hot rolling mill. Through the setting of the connecting baffle, one function is to play an isolation and protection role, so that the cooling header is isolated from the slab, thereby avoiding the damage of the slab temperature to the cooling header, and further improving the service life of the cooling header. Another function is to prevent foreign objects from falling onto the slab."

[0004] Regarding the above description, the applicant believes that the following problems exist:

[0005] During the use of this utility model, through the setting of the connecting baffle, one function is to play an isolation and protection role, so that the cooling header is isolated from the slab, thereby avoiding the damage of the slab temperature to the cooling header, and further improving the service life of the cooling header. Another function is to prevent foreign objects from falling onto the slab. However, in actual use, the connecting baffle of this device is provided with a limiting side plate, and the limiting side plate makes the connecting baffle have a groove structure, which can well collect and store foreign objects. The limiting baffle is fixed on the connecting baffle. When removing the foreign objects subsequently, an additional long rod tool is needed for cleaning, which is rather inconvenient. Moreover, there is no shielding on both sides of the connecting baffle, and when the foreign objects fall, they may fall from the edge and injure the operator. Therefore, it is necessary to improve a fixing frame structure for the water cutting plate of a hot rolling mill to solve the above problems. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a fixing frame structure for a water cutting plate of a hot rolling mill to solve the problems raised in the above background art.

[0007] To achieve the above object, the utility model provides the following technical solution: A fixing frame structure for a water cutting plate of a hot rolling mill, including an upper working roll, a lower working roll, a slab and two fixing brackets. A collection and protection mechanism is arranged outside the fixing brackets, and a cooling mechanism is arranged outside the fixing brackets. At one end of the two fixing brackets close to the upper working roll, water cutting plates are arranged.

[0008] The collection and protection mechanism includes an installation component and a protection component, and the protection component is arranged inside the installation component.

[0009] Preferably, the installation component includes eight connecting plates. The eight connecting plates are respectively fixedly installed on the inner sides of the two fixing brackets. Threaded holes are formed inside the connecting plates. A connecting baffle is arranged outside the connecting plates. Four bolts are threadedly installed inside the connecting baffle. Two side baffles are fixedly installed on the side of the connecting baffle close to the fixing bracket, which avoids the situation that parts fall from the edge and injure the operator, and also avoids the situation that they fall randomly to the ground and are not easy to clean.

[0010] Preferably, the bolts are threadedly installed inside the threaded holes. A placement interval is formed between the connecting plate and the connecting baffle. The collection and protection mechanism that cooperates with the upper working roll in the hot rolling mill is called the upper collection and protection mechanism, and the collection and protection mechanism that cooperates with the lower working roll in the hot rolling mill is called the lower collection and protection mechanism, which protects the spray pipe B and avoids foreign objects from interfering with the slab processing at the same time.

[0011] Preferably, the protection component includes a rotating shaft. The rotating shaft is rotatably installed inside the lower connecting baffle. An intercepting plate is fixedly installed on the outside of the rotating shaft. A cushion block is fixedly installed on the side of the intercepting plate close to the fixing bracket. A worm gear is fixedly installed on the front of the rotating shaft. A protective shell is fixedly installed on the front of the lower connecting baffle. A worm is rotatably installed inside the protective shell, and meshes with the worm gear to make the connecting plate rotate.

[0012] Preferably, the worm meshes with the worm gear. The worm gear is arranged inside the protective shell. The intercepting plate is movably installed inside the connecting baffle, which makes it more convenient to take out foreign objects.

[0013] Preferably, the cooling mechanism includes two convex blocks. The convex blocks are fixedly installed on the outer sides of the two fixing brackets. A water pipe A is fixedly installed at one end of the convex block away from the fixing bracket. A spray pipe A is fixedly installed on the outside of the water pipe A. A rectangular block is fixedly installed on the inner sides of the two fixing brackets. A spray pipe B is arranged inside the rectangular block. A water pipe B is fixedly installed at one end of the spray pipe B away from the upper working roll. An external connecting pipe A is fixedly installed on the back of the water pipe B to conduct water transportation.

[0014] Preferably, the nozzle B is arranged in the placement interval formed by the fixed bracket and the connecting baffle. The water pipe A is fixedly installed with the outer connecting pipe B. The nozzle A and the bump both face the upper working roll and the lower working roll to cool the upper working roll and the lower working roll.

[0015] Compared with the prior art, the present invention provides a fixing frame structure for a water cutting plate of a hot rolling mill, which has the following beneficial effects:

[0016] 1. In the fixing frame structure for the water cutting plate of the hot rolling mill, through the arranged collection and protection mechanism, during use, a placement interval is formed between the connecting baffle and the fixed bracket, which is convenient for the arrangement and placement of the nozzle B. The side baffle avoids the situation that parts fall from the edge and injure the operator, and also avoids the situation that they fall randomly to the ground and are not easy to clean. The rolling foreign objects are stored at the placement groove. The meshing of the worm and the worm gear makes the intercepting plate rotate to be parallel to the connecting baffle, making it more convenient to take out the foreign objects.

[0017] 2. In the fixing frame structure for the water cutting plate of the hot rolling mill, through the arranged cooling mechanism, during use, water is sprayed out through the nozzle A and the nozzle B to cool the upper working roll and the lower working roll, avoiding the problems of thermal cracks generated by the upper working roll and the lower working roll under high temperature conditions for a long time and shortening the service life, and prolonging the service life. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0019] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the fixed bracket and its connected mechanism structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the decomposition structure of the upper collection and protection mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the decomposition structure of the protection component of the present invention;

[0023] Figure 5 It is a schematic diagram of the cooling mechanism structure of the present invention.

[0024] In the figure: 1. Upper working roll; 2. Lower working roll; 3. Slab; 4. Fixed bracket; 5. Collection and protection mechanism; 51. Installation component; 511. Connecting plate; 512. Threaded hole; 513. Connecting baffle; 514. Bolt; 515. Side baffle; 52. Protection component; 521. Rotating shaft; 522. Intercepting plate; 523. Spacer block; 524. Worm gear; 525. Protection shell; 526. Worm; 6. Cooling mechanism; 61. Protrusion; 62. Water pipe A; 63. Spray pipe A; 64. Rectangular block; 65. Spray pipe B; 66. Water pipe B; 67. Outer connecting pipe A; 7. Water cutting plate. Specific implementation mode

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] Embodiment 1:

[0028] Please refer to Figures 1-4 , the present invention provides a technical solution: a fixing frame structure for a water cutting plate of a hot rolling mill, including an upper working roll 1, a lower working roll 2, a slab 3 and two fixed brackets 4. A collection and protection mechanism 5 is arranged outside the fixed bracket 4, a cooling mechanism 6 is arranged outside the fixed bracket 4, and a water cutting plate 7 is arranged at one end of each of the two fixed brackets 4 close to the upper working roll 1.

[0029] The collection and protection mechanism 5 includes an installation component 51 and a protection component 52, and the protection component 52 is arranged inside the installation component 51.

[0030] Further, the installation component 51 includes eight connecting plates 511 which are respectively and fixedly installed on the inner sides of the two fixing brackets 4. Threaded holes 512 are formed inside the connecting plates 511, and connecting baffles 513 are arranged outside the connecting plates 511. Four bolts 514 are threadedly installed inside the connecting baffles 513. Two side baffles 515 are fixedly installed on one side of the connecting baffle 513 close to the fixing bracket 4, which can prevent parts from falling from the edge and hurting the operator, and also avoid the situation that they fall randomly to the ground and are not easy to clean.

[0031] Further, the bolts 514 are threadedly installed inside the threaded holes 512, and a placement interval is formed between the connecting plates 511 and the connecting baffles 513. The collection and protection mechanism 5 used in cooperation with the upper working roll 1 of the hot rolling mill is called the upper collection and protection mechanism 5, and the collection and protection mechanism 5 used in cooperation with the lower working roll 2 of the hot rolling mill is called the lower collection and protection mechanism 5. While protecting the nozzle B65, it can prevent foreign objects from interfering with the processing of the slab 3.

[0032] Further, the protection component 52 includes a rotating shaft 521 which is rotatably installed inside the lower connecting baffle 513. An intercepting plate 522 is fixedly installed on the outside of the rotating shaft 521. A cushion block 523 is fixedly installed on one side of the intercepting plate 522 close to the fixing bracket 4. A worm gear 524 is fixedly installed on the front of the rotating shaft 521. A protective shell 525 is fixedly installed on the front of the lower connecting baffle 513. A worm 526 is rotatably installed inside the protective shell 525 and meshes with the worm gear 524 to make the connecting plate 511 rotate.

[0033] Further, the worm 526 meshes with the worm gear 524. The worm gear 524 is arranged inside the protective shell 525, and the intercepting plate 522 is movably installed inside the connecting baffle 513, which makes it more convenient to take out foreign objects.

[0034] Embodiment 2:

[0035] Please refer to Figure 5 , and in combination with Embodiment 1, it is further obtained that the cooling mechanism 6 includes two convex blocks 61 which are fixedly installed on the outer sides of the two fixing brackets 4. One end of the convex block 61 away from the fixing bracket 4 is fixedly installed with a water pipe A62. A nozzle A63 is fixedly installed on the outside of the water pipe A62. A rectangular block 64 is fixedly installed on the inner sides of the two fixing brackets 4. A nozzle B65 is arranged inside the rectangular block 64. One end of the nozzle B65 away from the upper working roll 1 is fixedly installed with a water pipe B66. An external connecting pipe A67 is fixedly installed on the back of the water pipe B66 for water delivery.

[0036] Furthermore, the nozzle B65 is arranged within the placement interval formed by the fixed bracket 4 and the connection baffle 513. The water pipe A62 is fixedly installed with the external connection pipe B. Both the nozzle A63 and the bump 61 face the upper working roll 1 and the lower working roll 2 to cool the upper working roll 1 and the lower working roll 2.

[0037] During the actual operation process, when this device is in use, the connecting plate 511 is inserted into the interior of the connection baffle 513, and the bolt 514 is turned to install the connection baffle 513 with the fixed bracket 4. A placement interval is formed between the connection baffle 513 and the fixed bracket 4, facilitating the arrangement and placement of the nozzle B65. When the connection baffle 513 is above the running slab 3, the connection baffle 513 blocks foreign objects such as parts falling off the fixed bracket 4, preventing the foreign objects from falling onto the slab 3 and affecting the processing of the slab 3. At the same time, the connection baffle 513 has a certain heat insulation effect on the high temperature of the slab 3, avoiding damage to the nozzle B65. The side baffle 515 prevents parts that fall into the top of the connection baffle 513 from falling off the edge during the use of this device, which may accidentally injure operators, etc., and also avoids the situation of falling randomly to the ground and being difficult to clean. The connection baffle 513 is inclined, and the fallen foreign objects will roll under the action of gravity outside the connection baffle 513, playing a certain guiding role. When this device is in use, the included angle between the intercepting plate 522 and the connection baffle 513 is ninety degrees. The intercepting plate 522 and the connection baffle 513 form a placement groove structure, and the rolling foreign objects are stored at the placement groove. When this device is not in use, a sufficiently large collection box is placed at the bottom of the connection baffle 513. The worm 526 is rotated to engage with the worm gear 524, causing the connecting plate 511 to drive the intercepting plate 522 to rotate until the intercepting plate 522 rotates parallel to the connection baffle 513. The foreign objects in the placement groove will roll into the interior of the collection box under the action of gravity, facilitating collection, making it more convenient to remove the foreign objects, and also facilitating the later observation of the component falling condition for repairing the fixed bracket 4. The external water pump is started to drive the water flow into the interior of the external connection pipe A67 and the water pipe A62, causing the water to be ejected through the nozzle A63 and the nozzle B65 to cool the upper working roll 1 and the lower working roll 2, avoiding the problems of thermal cracks and shortened service life caused by the upper working roll 1 and the lower working roll 2 being under high temperature conditions for a long time, and extending the service life.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent in such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A fixed frame structure for a water-cutting plate of a hot rolling mill, comprising an upper working roll (1), a lower working roll (2), a slab (3) and two fixed brackets (4), characterized in that: A collecting and protecting mechanism (5) is arranged outside the fixed bracket (4), a cooling mechanism (6) is arranged outside the fixed bracket (4), and a water cutting plate (7) is arranged at one end of the two fixed brackets (4) close to the upper working roll (1); The collection and protection mechanism (5) comprises a mounting component (51) and a protection component (52), wherein the protection component (52) is arranged inside the mounting component (51).

2. A fixing frame structure for a water cutting plate of a hot rolling mill according to claim 1, characterized in that: The mounting assembly (51) comprises eight connecting plates (511), the eight connecting plates (511) being fixedly mounted on the inner sides of two fixed brackets (4), respectively; a threaded hole (512) is provided inside the connecting plate (511); a connecting baffle (513) is provided outside the connecting plate (511); four bolts (514) are installed on the inner threads of the connecting baffle (513); and two side baffles (515) are fixedly mounted on one side of the connecting baffle (513) close to the fixed bracket (4).

3. A fixing frame structure for a water cutting plate of a hot rolling mill according to claim 2, characterized in that: The bolt (514) is threadedly installed inside the threaded hole (512), and a placement interval is formed between the connecting plate (511) and the connecting baffle (513). The collecting and protecting mechanism (5) used in conjunction with the upper working roll (1) in the hot rolling mill is called an upper collecting and protecting mechanism (5), and the collecting and protecting mechanism (5) used in conjunction with the lower working roll (2) in the hot rolling mill is called a lower collecting and protecting mechanism (5).

4. A fixing frame structure for a water cutting plate of a hot rolling mill according to claim 2, characterized in that: The protective component (52) comprises a rotating shaft (521), wherein the rotating shaft (521) is rotatably mounted inside the connecting baffle (513) below, an intercepting plate (522) is fixedly mounted outside the rotating shaft (521), a cushion block (523) is fixedly mounted on a side of the intercepting plate (522) close to the fixed bracket (4), a worm gear (524) is fixedly mounted on the front side of the rotating shaft (521), a protective shell (525) is fixedly mounted on the front side of the connecting baffle (513) below, and a worm (526) is rotatably mounted inside the protective shell (525).

5. A fixing frame structure for a water cutting plate of a hot rolling mill according to claim 4, characterized in that: The worm (526) is meshed with a worm wheel (524), the worm wheel (524) is arranged inside the protective shell (525), and the intercepting plate (522) is movably installed inside the connecting baffle (513).

6. A fixing frame structure for a water cutting plate of a hot rolling mill according to claim 1, characterized in that: The cooling mechanism (6) comprises two protrusions (61), wherein the protrusions (61) are fixedly mounted on the outer sides of the two fixed brackets (4), a water pipe A (62) is fixedly mounted on one end of the protrusion (61) away from the fixed bracket (4), a nozzle A (63) is fixedly mounted on the outside of the water pipe A (62), a rectangular block (64) is fixedly mounted on the inner sides of the two fixed brackets (4), a nozzle B (65) is arranged inside the rectangular block (64), a water pipe B (66) is fixedly mounted on one end of the nozzle B (65) away from the upper working roll (1), and an external pipe A (67) is fixedly mounted on the back of the water pipe B (66).

7. A fixing frame structure for a water cutting plate of a hot rolling mill according to claim 6, characterized in that: The nozzle B (65) is arranged in a placement interval formed by the fixed bracket (4) and the connecting baffle (513), the water pipe A (62) and the external pipe B are fixedly installed, and the nozzle A (63) and the protrusion (61) are both facing the upper working roll (1) and the lower working roll (2).

Images