A mill set suspension loop entrance guide in a high speed wire rod mill

Abstract

The utility model discloses a kind of mill group vertical loop entry suspension guide in high-speed wire rod mill, including suspension guide, lifting lug, carrier roller and support frame, the lifting lug is welded in the central position of suspension guide top end, the suspension guide left end is equipped with loop entry, and loop entry is penetrated in suspension guide right end, the bottom end of the both sides of suspension guide is welded with underframe. The utility model can smoothly guide rolling piece to enter and export loop by being equipped with the loop entry of loudspeaker mouth structure in suspension guide left end, does not produce steel stacking accident, two groups of carrier rollers are equipped in the bottom of suspension guide, and rolling carrier roller does not contact bottom plate when production, reduce bottom plate sliding friction wear, lifting lug is welded on the upper end of suspension guide, facilitate hoisting operation when vertical loop entry suspension guide replacement maintenance, adjustable support frame is equipped in the both ends of suspension guide, can be according to production situation to vertical loop entry suspension guide height rolling line adjustment.

Description

Technical Field

[0001] This utility model relates to the field of high-speed wire rod production in the metallurgical industry, specifically to a hanging guide at the entrance of the rolling mill assembly looper in a high-speed wire rod rolling mill. Background Technology

[0002] Wire rod is one of the most important products in the iron and steel metallurgical industry, with over 700 steel grades and specifications. It is widely used in various aspects of national economic construction, such as engineering construction and metal products industries. my country has become the world's largest producer of wire rod, accounting for over 40% of global production. Major steel-producing countries worldwide have widely adopted fully continuous, twist-free high-speed wire rod finishing mills and controlled rolling and cooling technologies. High-speed wire rod rolling mills are currently the main type of rolling mill used in the production of wire rod products in China. The main production process includes billet feeding, heating, roughing, intermediate rolling, pre-finishing, finishing, water cooling, wire drawing, Stellmore air cooling line, coiling, P / F line, trimming, packaging, weighing, uncoiling, and warehousing. The main function of the rolling mill is to further roll the material from the roughing mill and provide the pre-finishing mill with qualified rolled billets.

[0003] The existing mills have rolling forces under normal design conditions for each stand. However, when external conditions change, such as uneven temperature of incoming rolled materials, large bends in incoming rolled materials, misalignment of the intermediate mill rolling line, and uneven wear of intermediate mill rolls, it becomes difficult to control the shape and size of the rolled materials. Utility Model Content

[0004] The purpose of this invention is to provide a suspension guide at the inlet of the mill assembly looper in a high-speed wire rod mill, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hanging guide for the inlet of a high-speed wire rod mill assembly, comprising a hanging guide, a hoisting lug, a roller, and a support frame. A hoisting lug is welded at the center of the top of the hanging guide. A hanging inlet is opened at the left end of the hanging guide and extends through the right end of the hanging guide. Base frames are welded to the bottom ends of both sides of the hanging guide. A detachable mounting frame is installed at the bottom end of the base frame, and a roller is installed inside the mounting frame via a rotating shaft.

[0006] The suspension guide has connecting cylinders at both the front and rear ends on the left side, and the connecting cylinders are provided with two sets of symmetrical structures. Each of the two sets of connecting cylinders is provided with a sliding support frame. The middle of the support frame is provided with a threaded adjusting bolt, and the bottom end of the adjusting bolt is rotatably connected to the suspension guide through a swivel ring. A base plate is welded to the bottom end of the support frame.

[0007] As a preferred embodiment of this invention, the suspension guide is a hollow cuboid structure.

[0008] As a preferred embodiment of this utility model, the suspension guide is constructed by welding four rectangular steel plates.

[0009] As a preferred embodiment of this invention, the left end of the slip-on inlet is shaped like a trumpet with an inwardly concave structure.

[0010] As a preferred embodiment of this utility model, studs are welded to both the front and rear sides of the upper end of the mounting bracket, and the upper ends of the studs penetrate through the base frame and are fixed by nuts.

[0011] As a preferred embodiment of this utility model, the support frame is rectangular with an internal hollow structure.

[0012] As a preferred embodiment of this utility model, a gap is provided between the inner end face of the support frame and the front and rear end faces of the suspension guide.

[0013] In a preferred embodiment of this invention, the two adjusting bolts rotate synchronously, and the bottom plates at the bottom ends of the two support frames are horizontal.

[0014] As a preferred embodiment of this utility model, a gap is provided between the base plate and the idler roller.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, by providing a loop inlet with a funnel-shaped structure at the left end of the suspension guide, the rolled piece can be smoothly guided into and out of the loop without causing steel piling accidents. Two sets of idlers are provided at the bottom of the suspension guide. During normal production, the rolling idlers lift the rolled piece without contacting the bottom plate, reducing the sliding friction and wear of the bottom plate.

[0017] 2. In this utility model, a lifting lug is welded to the upper end of the suspension guide to facilitate the lifting operation when replacing and maintaining the suspension guide at the entrance of the vertical looper. Adjustable support frames are provided at both ends of the suspension guide, which can adjust the height of the suspension guide at the entrance of the vertical looper according to the production situation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the lifting frame structure after it has been raised according to this utility model;

[0020] Figure 3 This is a partially exploded structural diagram of the suspension guide and idler roller of this utility model;

[0021] Figure 4This is a front view of a partial connection structure between the suspended guide and the support frame of this utility model;

[0022] Figure 5 This is a left view of the connection structure between the suspended guide and the support frame of this utility model;

[0023] Figure 6 This is a front view of the internal structure of the suspended guide of this utility model.

[0024] In the diagram: 1. Suspended guide; 2. Loose loop inlet; 3. Lifting lug; 4. Base frame; 5. Mounting frame; 6. Idler roller; 7. Connecting cylinder; 8. Support frame; 9. Adjusting bolt; 10. Rotary ring; 11. Base plate; 12. Stud; 13. Nut. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. "Multiple" means two or more, and unless otherwise explicitly limited, all of them fall within the scope of protection of this utility model.

[0028] Example

[0029] like Figure 1-6As shown, this utility model provides a technical solution: including a suspension guide 1, a hoisting ear 3, a roller 6 and a support frame 8. The hoisting ear 3 is welded at the center of the top of the suspension guide 1. A loop inlet 2 is opened at the left end of the suspension guide 1 and the loop inlet 2 passes through the right end of the suspension guide 1. A base frame 4 is welded to the bottom of both sides of the suspension guide 1. A detachable mounting frame 5 is installed at the bottom of the base frame 4. The roller 6 is installed at the inner end of the mounting frame 5 through a rotating shaft.

[0030] The left and front ends of the suspension guide 1 are connected by cylinders 7, and the connecting cylinders 7 are provided with two sets of symmetrical structures. The two sets of connecting cylinders 7 are provided with sliding support frames 8. The middle of the support frame 8 is provided with a threaded adjusting bolt 9, and the bottom end of the adjusting bolt 9 is rotatably connected to the suspension guide 1 through a swivel ring 10. The bottom plate 11 is welded to the bottom end of the support frame 8.

[0031] The suspended guide 1 is a hollow cuboid structure.

[0032] The suspended guide 1 is made of four rectangular steel plates welded together. The suspended guide frame is designed to be welded from 45# cast steel plates to ensure that the suspended guide at the vertical loop entrance can withstand large impact loads without large deformation or breakage.

[0033] The left end of the looper inlet 2 is shaped like a concave trumpet, and a guide is suspended to ensure that the rolled piece from the previous stand can smoothly enter the vertical looper inlet.

[0034] The mounting bracket 5 has studs 12 welded on both the front and rear sides of the upper end, and the upper end of the studs 12 passes through the base frame 4 and is fixed by nuts 13, which facilitates installation and disassembly according to usage requirements.

[0035] The support frame 8 is a rectangular shape with an internal hollow structure, which reduces its weight and makes it easy to adjust.

[0036] There is a gap between the inner end face of the support frame 8 and the front and rear end faces of the suspension guide 1 to prevent the support frame from scraping against the suspension guide when it is raised or lowered.

[0037] The two adjusting bolts 9 rotate synchronously, and the bottom plates 11 at the bottom of the two support frames 8 are horizontal, so that the suspension guide is always in a horizontal structure.

[0038] A gap is provided between the base plate 11 and the idler roller 6 to prevent the base plate from scraping against the idler roller when it is raised or lowered.

[0039] In this embodiment, a looper inlet with a flared structure is provided at the left end of the suspension guide, which can smoothly guide the rolled piece into and out of the looper without causing steel piling accidents. Two sets of idlers are provided at the bottom of the suspension guide. During normal production, the rolling idlers lift the rolled piece without contacting the bottom plate, reducing sliding friction and wear of the bottom plate. Lifting lugs are welded to the upper end of the suspension guide to facilitate the lifting operation when replacing and maintaining the suspension guide at the looper inlet. Adjustable support frames are provided at both ends of the suspension guide, which can adjust the height of the suspension guide at the looper inlet according to the production situation.

[0040] Working principle:

[0041] The left end of the suspension guide 1 is flared to ensure that the rolled piece from the previous stand can smoothly enter the vertical looper entrance suspension guide. A detachable idler roller 6 is provided at the bottom of the suspension guide 1 to reduce the wear of the rolled piece on the bottom plate of the vertical looper entrance suspension guide. During normal production, the rolling idler roller lifts the rolled piece without contacting the bottom plate, reducing sliding friction wear of the bottom plate. Moreover, the mounting bracket 5 installed on the idler roller 6 can be installed by studs 12 and fixed by nuts 13, making disassembly and installation convenient. A hoisting lug 3 is designed at the upper end of the suspension guide 1 to facilitate hoisting operations during the replacement and maintenance of the vertical looper entrance suspension guide. Sliding lifting frames are provided on both sides of the suspension guide 1. By adjusting the adjusting bolts 9, the support frame 8 can adjust the height of the vertical looper entrance suspension guide according to the production situation.

[0042] 6. The frame of the vertical looper entrance suspension guide is designed to be welded from 45# cast steel plate to ensure that the vertical looper entrance suspension guide can withstand large impact loads without large deformation or breakage.

[0043] The vertical looper inlet suspension guide roller is made of 65Mn, which is resistant to high temperature and wear, and is subjected to quenching and tempering treatment.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A suspension guide at the entrance of a high-speed wire rod mill's stand-up looper, comprising a suspension guide (1), a hoisting lug (3), an idler roller (6), and a support frame (8), characterized in that: A hoisting lug (3) is welded at the center of the top of the suspended guide (1). A looper inlet (2) is opened at the left end of the suspended guide (1), and the looper inlet (2) passes through the right end of the suspended guide (1). A base frame (4) is welded to the bottom of both sides of the suspended guide (1). A detachable mounting frame (5) is installed at the bottom of the base frame (4). A roller (6) is installed inside the mounting frame (5) via a rotating shaft. The suspension guide (1) has connecting cylinders (7) at both the front and rear ends on the left side, and the connecting cylinders (7) are provided with two sets of symmetrical structures. The two sets of connecting cylinders (7) are provided with sliding support frames (8). The middle of the support frame (8) is provided with a threaded adjusting bolt (9), and the bottom end of the adjusting bolt (9) is rotatably connected to the suspension guide (1) through a swivel ring (10). A base plate (11) is welded to the bottom end of the support frame (8).

2. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: The suspended guide (1) is a hollow cuboid structure.

3. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: The suspended guide (1) is composed of four rectangular steel plates welded together.

4. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: The left end of the loop inlet (2) is shaped like a trumpet with an inward concave structure.

5. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: The mounting bracket (5) has studs (12) welded on both the front and rear sides of its upper end, and the upper end of the studs (12) passes through the base frame (4) and is fixed by nuts (13).

6. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: The support frame (8) is rectangular with an internal hollow structure.

7. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: There is a gap between the inner end face of the support frame (8) and the front and rear end faces of the suspension guide (1).

8. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: The two adjusting bolts (9) rotate synchronously, and the bottom plates (11) at the bottom ends of the two support frames (8) are horizontal.

9. The mill assembly looper inlet suspension guide in a high-speed wire rod mill according to claim 1, characterized in that: There is a gap between the base plate (11) and the idler roller (6).

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