CN211564046U

CN211564046U - Roll collar cooling device of high-speed wire rod finishing mill

Info

Publication number: CN211564046U
Application number: CN201922154477.6U
Authority: CN
Inventors: 徐华瀚; 顾春华
Original assignee: Yunnan Qu Jing Cheng Gang Iron And Steel Group Co ltd
Current assignee: Yunnan Qu Jing Cheng Gang Iron And Steel Group Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-25
Anticipated expiration: 2029-12-05

Abstract

The utility model discloses a roll collar cooling device of high-speed wire rod finishing mill, including two roll collars of arranging from top to bottom and the high-speed wire rod that is located between two roll collars, two roll collars are upper roll collar and lower roll collar respectively, the top of upper roll collar and the below of lower roll collar all are provided with the storage water tank, two storage water tank longitudinal symmetry arrange, the storage water tank includes the straight section of level and the sector ring section of a body structure, the storage water tank includes aqua storage tank and closing cap, be provided with the inlet tube on the closing cap, the bottom interval processing of aqua storage tank has a plurality of apopores, all be provided with spiral water outlet mechanism in every apopore, spiral water outlet mechanism includes locating plate and axis, centraxonial being provided with the spiral plate. The utility model discloses non-deformable sprays evenly, and difficult jam is better to the cooling effect of collars, has apparent economic value and social value.

Description

Roll collar cooling device of high-speed wire rod finishing mill

Technical Field

The utility model relates to a steel smelting technical field, concretely relates to roll collar cooling device of high-speed wire rod finishing mill.

Background

High-speed wire rod is in process of production, accomplish rolling operation to the red steel of circle through the finishing mill, the finishing mill is its upper and lower roll ring when rolling and is extrudeed the red steel of circle, because the red steel of circle is in high temperature state, the red steel of circle is out of shape still can generate heat when the extrusion is rolled simultaneously, these heats can be transmitted for the roll collar, will produce higher temperature on the roll collar surface, the roll collar is easy deformation and explode and split under high temperature, still can produce fatigue damage, can produce harmful effects to the quality of high-speed wire rod, consequently, high-speed wire rod need use cooling device to cool off the roll collar at rolling in-process.

The existing cooling device structure is: an arc-shaped pipe is fixed on a rack, a plurality of nozzles are arranged on the arc-shaped pipe, one end of the arc-shaped pipe is communicated with a water source, the other end of the arc-shaped pipe is blocked, and water flow sprayed by the nozzles sprays and cools the roller ring during cooling. The defects of the method are as follows: firstly, the arc-shaped pipe is easy to be heated and deformed at a high temperature, so that the spraying direction of the nozzle is changed, and the spraying and cooling effect is influenced; secondly, the coverage of cooling water is narrow, the cooling degree of the roll collar is not enough, and the cooling effect cannot be well achieved, so that the surface color of the roll collar is bluish and purplish, the metal on the surface layer of the roll collar falls off seriously, and the service life is shortened; thirdly, the problems of water shortage, roller explosion and the like of the roll collar of the finishing mill due to the fact that a nozzle hole is small and easy to block are caused. Therefore, it is objective to develop a roll collar cooling device of a high-speed wire rod finishing mill which is not easy to deform, spray evenly, block easily and has good cooling effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a non-deformable sprays evenly, is difficult for blockking up, the roll collar cooling device of the high-speed wire rod finishing mill that the cooling effect is good.

The utility model aims at realizing the method, which comprises two roll collars arranged up and down and a high-speed wire rod arranged between the two roll collars, wherein the two roll collars are an upper roll collar and a lower roll collar respectively, water storage tanks are arranged above the upper roll collar and below the lower roll collar respectively, the two water storage tanks are arranged symmetrically up and down, the water storage tanks comprise a horizontal straight section and a sector ring section which are of an integrated structure, the horizontal straight section is arranged at one side close to the feeding end of the high-speed wire rod, the sector ring section is arranged at one side close to the discharging end of the high-speed wire rod, the sector ring section and the roll collars are arranged concentrically and at intervals, the horizontal straight section and the sector ring section both comprise a water storage tank and a sealing cover, the water storage tank and the sealing cover are connected through a sealing gasket and a fastening bolt, a water inlet pipe is arranged on the sealing cover, a plurality of water outlet holes are processed at intervals on the side of the roll collars facing the water storage tank, the water spraying direction of the water outlet holes is opposite, and a spiral water outlet mechanism is arranged in each water outlet hole.

The spiral water outlet mechanism comprises a positioning plate and a middle shaft which are perpendicular to each other, the middle shaft is positioned on the central axis of the water outlet hole, the upper end of the middle shaft is fixedly connected with the positioning plate, a spiral plate is arranged on the middle shaft, the outer edge of the spiral plate is tightly attached to the inner wall of the water outlet hole, grooves are processed on the sealing cover and the side face of the water storage tank opposite to the sealing cover, and two ends of the positioning plate are respectively inserted into the corresponding grooves.

Furthermore, the water outlet hole is in a conical shape with a large inner port and a small outer port.

Furthermore, the middle shaft is a hollow shaft, and the upper end of the middle shaft penetrates through the positioning plate and then is communicated with the inner space of the water storage tank.

Furthermore, the size of the water outlet hole on the water storage tank is gradually increased from the feeding end to the discharging end of the high-speed wire rod.

The water storage tank in the utility model is formed by connecting the water storage tank and the sealing cover, thereby avoiding the elastic deformation and plastic deformation of the metal pipe when bending, also avoiding the problems of heated springback and the like of the bent pipe in the using process, having larger mechanical strength, being not easy to generate thermal deformation and touch deformation, ensuring the stability of the water outlet direction and ensuring the spray cooling effect; secondly, the spiral water outlet mechanism is arranged in the water outlet hole, when water in the water storage tank passes through the water outlet hole, spiral water flow is formed after the water outlet hole is sprayed out under the action of pressure and a spiral plate, cooling water can be well dispersed, the coverage area of the spiral water outlet mechanism is large, the roll collar can be cooled in a large range uniformly, the cooling effect is good, and the service life of the roll collar can be effectively prolonged; finally, due to the arrangement of the spiral water outlet mechanism and the generation of spiral water flow, impurities such as dust are not easy to gather in the water outlet hole, the blockage of the water outlet hole can be effectively avoided, and the normal continuous spraying of cooling water is ensured. The utility model discloses when using, during water enters into the aqua storage tank from the inlet tube, spout to the collars after the apopore forms spiral rivers afterwards, at the collars continuous pivoted in-process, cool off the collars, effectively reduced the collars and produced fatigue damage's probability under the high temperature condition to reduce manufacturing cost, guaranteed going on smoothly of production. The utility model discloses non-deformable sprays evenly, and difficult jam is better to the cooling effect of collars, has apparent economic value and social value.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of a water storage tank of the present invention;

FIG. 3 is a schematic structural view of the spiral water outlet mechanism of the present invention;

in the figure: 1-high-speed wire, 2-upper roll collar, 3-lower roll collar, 4-horizontal straight section, 5-sector ring section, 6-water storage tank, 7-sealing cover, 8-sealing gasket, 9-fastening bolt, 10-water inlet pipe, 11-water outlet hole, 12-positioning plate, 13-middle shaft, 14-spiral plate and 15-groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited in any way, and any changes or improvements based on the present invention are all within the protection scope of the present invention.

As shown in figures 1-3, the utility model comprises two roll rings arranged up and down and a high-speed wire 1 arranged between the two roll rings, the two roll rings are an upper roll ring 2 and a lower roll ring 3 respectively, water storage tanks are arranged above the upper roll ring 2 and below the lower roll ring 3, the two water storage tanks are symmetrically arranged up and down, the water storage tank comprises a horizontal straight section 4 and a fan ring section 5 which are of an integrated structure, the horizontal straight section 4 is arranged at one side close to the feeding end of the high-speed wire 1, the fan ring section 5 is arranged at one side close to the discharging end of the high-speed wire 1, the fan ring section 5 and the roll rings are concentrically arranged at intervals, the horizontal straight section 4 and the fan ring section 5 both comprise a water storage tank 6 and a sealing cover 7, the water storage tank 6 is connected with the sealing cover 7 through a sealing gasket 8 and a fastening bolt 9, a water inlet pipe 10 is arranged on the sealing cover 7, a plurality of water outlet holes 11 are processed at intervals on the side of the water storage tank, and the central axis of the water outlet hole 11 and the tangent line at the intersection point on the excircle of the roll collar form an included angle of 15-30 degrees, and a spiral water outlet mechanism is arranged in each water outlet hole 11.

Spiral water mechanism includes mutually perpendicular's locating plate 12 and axis 13, axis 13 is located apopore 11 central axis, axis 13's upper end and locating plate 12 fixed connection, be provided with spiral plate 14 on the axis 13, the outward flange of spiral plate 14 is hugged closely on the inner wall of apopore 11, it is fluted 15 to process on closing cap 7 and the aqua storage tank 6 side relative with closing cap 7, corresponding recess 15 is inserted respectively at the both ends of locating plate 12, locating plate 12 is blocked between aqua storage tank 6 and closing cap 7, can not produce the displacement during the use and rock.

The water storage tank in the utility model is formed by connecting the water storage tank 6 and the sealing cover 7, so that the elastic deformation and the plastic deformation generated when the metal pipe is bent are avoided, the problems of heated springback and the like of the bent pipe in the use process are also avoided, the mechanical strength is higher, the thermal deformation and the touch deformation are not easy to generate, the stability of the water outlet position can be ensured, and the spraying cooling effect is ensured; secondly, the spiral water outlet mechanism is arranged in the water outlet hole 11, when water in the water storage tank passes through the water outlet hole 11, spiral water flow is formed after the water is sprayed out of the water outlet hole 11 under the action of pressure and the spiral plate 14, cooling water can be well dispersed, the coverage area of the spiral water outlet mechanism is large, the roll collar can be cooled uniformly in a large range, the cooling effect is good, and the service life of the roll collar can be effectively prolonged; finally, due to the arrangement of the spiral water outlet mechanism and the generation of spiral water flow, impurities such as dust are not easy to gather in the water outlet hole 11, the blockage of the water outlet hole 11 can be effectively avoided, and the normal continuous spraying of cooling water is ensured. The utility model discloses when using, during water enters into aqua storage tank 6 from inlet tube 10, spout to the collars after 11 formation spiral rivers of apopore afterwards, at the collars continuous pivoted in-process, cool off the collars, effectively reduced the collars and produced fatigue damage's probability under the high temperature condition to reduce manufacturing cost, guaranteed going on smoothly of production.

The outlet hole 11 is a cone with a large inner end and a small outer end. Due to the arrangement, after water flows through the water outlet hole 11, the water flow speed is improved due to the reduction of the water outlet section, and the roller ring has a good cooling effect.

The middle shaft 13 is a hollow shaft, and the upper end of the middle shaft 13 is communicated with the inner space of the water storage tank 6 after passing through the positioning plate 12. In the using process, the cooling water in the water storage tank 6 is sprayed out from the middle shaft 13 and is used for assisting the spiral water flow to cool the roll collar, and a better cooling effect can be obtained.

The size of the water outlet hole 11 on the water storage tank 6 is gradually increased from the feeding end to the discharging end of the high-speed wire rod 1. The temperature that is located on the collars of 1 discharge end of high-speed wire rod is higher, and the collars constantly receives the cooling of cooling water at the rotation in-process, and the temperature reduces gradually, and to this characteristic, 11 sizes of apopore at 1 discharge end of high-speed wire rod department are great, and the more cooling water of blowout, such setting can make the collars obtain better cooling.

Claims

1. The utility model provides a roll collar cooling device of high-speed wire rod finishing mill, includes two roll collars of arranging from top to bottom and is located high-speed wire rod (1) between two roll collars, and two roll collars are last roll collar (2) and lower roll collar (3) respectively, its characterized in that: the roller ring water spraying device is characterized in that water storage tanks are arranged above the upper roller ring (2) and below the lower roller ring (3) and are symmetrically arranged from top to bottom, the water storage tanks comprise horizontal straight sections (4) and fan ring sections (5) which are of an integral structure, the horizontal straight sections (4) are located on one side close to the feeding end of the high-speed wire (1), the fan ring sections (5) are located on one side close to the discharging end of the high-speed wire (1), the fan ring sections (5) and the roller ring are concentrically arranged at intervals, the horizontal straight sections (4) and the fan ring sections (5) respectively comprise water storage tanks (6) and sealing covers (7), the water storage tanks (6) and the sealing covers (7) are connected through sealing gaskets (8) and fastening bolts (9), water inlet pipes (10) are arranged on the sealing covers (7), a plurality of water outlet holes (11) are machined on the side, facing the roller ring, of the water storage tanks (6) at intervals, and the water spraying direction of the water outlet holes, an included angle of 15-30 degrees is formed between the central axis of each water outlet hole (11) and a tangent line at an intersection point on the excircle of the roll collar, and a spiral water outlet mechanism is arranged in each water outlet hole (11);

the spiral water outlet mechanism comprises a positioning plate (12) and a middle shaft (13) which are perpendicular to each other, the middle shaft (13) is located on the central axis of the water outlet hole (11), the upper end of the middle shaft (13) is fixedly connected with the positioning plate (12), a spiral plate (14) is arranged on the middle shaft (13), the outer edge of the spiral plate (14) is tightly attached to the inner wall of the water outlet hole (11), grooves (15) are processed on the side faces of the sealing cover (7) and the water storage tank (6) opposite to the sealing cover (7), and two ends of the positioning plate (12) are respectively inserted into the corresponding grooves (15).

2. The roll collar cooling device of a high-speed wire rod finishing block as claimed in claim 1, wherein the water outlet hole (11) is tapered with a large inner end and a small outer end.

3. The roll collar cooling device of the high-speed wire rod finishing mill according to claim 1, characterized in that the central shaft (13) is a hollow shaft, and the upper end of the central shaft (13) is communicated with the inner space of the water storage tank (6) after passing through the positioning plate (12).

4. The roll collar cooling device of the high-speed wire rod finishing mill according to claim 1, characterized in that the size of the water outlet hole (11) on the water storage tank (6) is gradually increased from the feeding end to the discharging end of the high-speed wire rod (1).