Novel double-connecting-rod type four-slitting rolling process loop

Abstract

The novel double-connecting-rod type four-slitting rolling process loop comprises a left connecting rod, a right connecting rod, a transverse rod, a loop rising roller and an air cylinder, the upper end of the left connecting rod is connected with the upper end of the right connecting rod through the transverse rod, the lower end of the left connecting rod is connected with the left end of a roller shaft of the loop rising roller, and the lower end of the right connecting rod is connected with the right end of the roller shaft of the loop rising roller. The lower end of the right connecting rod is connected with the right end of a roller shaft of the loop rising roller, the air cylinder is located above the loop rising roller, and the cross rod is movably connected with the air cylinder. The utility model relates to a novel double-connecting-rod four-slitting rolling process loop, which ensures that a loop rising roller is lifted stably and does not deflect, and eliminates abnormal conditions such as rolled piece waving caused by frequent tension adjustment due to inclination of the loop rising roller in the rolling process.

Description

Technical Field

[0001] The utility model relates to the field of steel production, in particular to a new type of double-link four-split rolling process loop. Background Art

[0002] In the section steel rolling process, the rolling program to be adjusted for split rolling is more cumbersome. When changing from the original three-split rolling process to the four-split rolling process, the stability of the adjusted tension is more important. The original design of the loop lifting roll is connected by a single-sided swing arm. The length of the roll required for three-splitting has reached the limit. In the four-split rolling process, the single-sided swing arm connection for lifting the roll is affected by its own dead weight. In addition, after the roll rises, the downward acting force of the rolled piece causes the piston rod of the cylinder to stick to the sealed side, and the body will tilt significantly. On the one hand, it seriously affects the adjustment of tension and stability. The tension of each rolled piece shows obvious differences and is difficult to adjust and control. The rolled piece often produces "rippling", resulting in steel running and steel piling, and at the same time, the finished product will be scratched, and the qualified rate of the finished product is severely restricted. On the other hand, it will also cause abnormal wear of components such as copper sleeves and connecting rods. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a new type of double-link four-split rolling process loop to ensure that the loop lifting roll is lifted smoothly and without deviation, and eliminate abnormal conditions such as rippling of the rolled piece caused by frequent tension adjustment due to the inclination of the loop lifting roll during the rolling process.

[0004] A new type of double-link four-split rolling process loop includes: a left connecting rod, a right connecting rod, a cross bar, a loop lifting roll, and a cylinder. The cross bar connects the upper ends of the left connecting rod and the right connecting rod. The lower end of the left connecting rod is connected to the left end of the roll shaft of the loop lifting roll. The lower end of the right connecting rod is connected to the right end of the roll shaft of the loop lifting roll. The cylinder is located above the loop lifting roll, and the cross bar is movably connected to the cylinder.

[0005] In one embodiment, a left swing arm is provided at the left end of the loop lifting roll, and a right swing arm is provided at the right end of the loop lifting roll. The lower end of the left connecting rod is rotatably connected to the left swing arm, and the lower end of the right connecting rod is rotatably connected to the right swing arm.

[0006] In one embodiment, the left swing arm is installed on a left shaft seat, and the right swing arm is installed on a right shaft seat.

[0007] In one embodiment, the piston rod of the cylinder is rotatably connected to the cross bar.

[0008] In one embodiment, the piston rod of the cylinder is connected to the cross bar through a spherical plain bearing.

[0009] In one embodiment, a stop baffle is provided at each end of the sleeve lifting roller. The stop baffle is provided with an arc-shaped chute, and the sleeve lifting roller passes through the chute.

[0010] In one embodiment, the roller shafts at both ends of the sleeve lifting roller extend through the chute.

[0011] Compared with the prior art, the advantages of the novel double-link four-split rolling process loop of the present utility model are as follows:

[0012] The double link is used to pull the sleeve lifting roller to rise, ensuring that the piston rod of the cylinder operates normally without deviation, and the sleeve lifting roller does not tilt when rising to the highest point, making the tension adjustment of the rolled piece consistent, reducing frequent adjustments in the process operation, and eliminating abnormal situations such as the rolled piece undulating due to tension control, ensuring the continuity of production rolling and ensuring the qualified surface quality of the rolled piece during the rolling process.

[0013] Through the following description and in conjunction with the drawings, the present utility model will become clearer. These drawings are used to explain the embodiments of the present utility model. Description of the Drawings

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is the front view structural schematic diagram of the novel double-link four-split rolling process loop of the embodiment of the present utility model;

[0016] Figure 2 It is the left view structural schematic diagram of the novel double-link four-split rolling process loop of the embodiment of the present utility model;

[0017] Figure 3 It is the structural schematic diagram of the middle stop baffle of the embodiment of the present utility model.

[0018] Among them, 1. Cylinder support, 2. Pressure roller, 3. Loop body, 4. Sleeve lifting roller, 5. Cylinder, 6. Right swing arm, 7. Right link, 8. Left swing arm, 9. Left link, 10. Cross bar, 11. Spherical plain bearing, 12. Piston rod of the cylinder, 13. Stop baffle, 14. Chute, 15. Long hole, 16. Right shaft seat. Detailed Embodiments

[0019] Now, the embodiments of the present utility model will be described with reference to the drawings.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] As Figures 1-3 shown, a novel double-link four-split rolling process loop of this embodiment includes: a left link 9, a right link 7, a cross bar 10, a loop-raising roll 4, and a cylinder 55. The cross bar 10 connects the upper ends of the left link 9 and the right link 7. The lower end of the left link 9 is connected to the left end of the roller shaft of the loop-raising roll 4, and the lower end of the right link 7 is connected to the right end of the roller shaft of the loop-raising roll 4. The cylinder 55 is located above the loop-raising roll 4. A triangular cylinder 5 bracket 1 is provided above the loop-raising roll. The cylinder 55 is installed on the cylinder 5 bracket 1. The cross bar 10 is movably connected to the piston rod 12 of the cylinder 55. By designing the frame of the double-link structured loop-raising roll 4, the phenomenon of abnormal wear of the link and copper sleeve caused by the self-weight of the single-sided loop-raising roll 4 after loop raising can be eliminated, and abnormal situations such as the rolling piece undulating caused by the frequent tension adjustment due to the inclination of the loop-raising roll 4 during the rolling process can be eliminated.

[0023] A left swing arm 8 is provided at the left end of the loop-raising roll 4, and a right swing arm 6 is provided at the right end of the loop-raising roll 4. The lower end of the left link 9 is rotatably connected to the left swing arm 8, and the lower end of the right link 7 is rotatably connected to the right swing arm 6. The left swing arm 8 is rotatably connected to the loop-raising roll 4, and the right swing arm 6 is rotatably connected to the loop-raising roll 4. The left link 9 is connected to the left swing arm 8 instead of directly connected to the loop-raising roll 4, and the right link 7 is connected to the right swing arm 6 instead of directly connected to the loop-raising roll 4, which can shorten the force arm of the piston rod 12 relative to the force for lifting the loop-raising roll 4, make the loop-raising roll 4 rise and fall smoothly, and further ensure the smooth rising and falling of the loop-raising roll 4.

[0024] The left swing arm 8 and the right swing arm 6 are rotatably installed on the loop body 3. Specifically, the loop body 3 is provided with a left axle seat and a right axle seat 16. The left swing arm 8 is rotatably installed on the left axle seat, and the right swing arm 6 is rotatably installed on the right axle seat 16. The left axle seat and the right axle seat 16 are split-type structural axle seats.

[0025] The piston rod 12 of the air cylinder 55 is rotatably connected to the cross bar 10.

[0026] Specifically, the piston rod 12 of the air cylinder 55 is connected to the cross bar 10 through a spherical plain bearing 11. By providing the spherical plain bearing 11, a certain amount of deflection between the air cylinder 55 and the loop roll 4 can be tolerated. Through the deflection of the spherical plain bearing 11, the loop roll 4 can rise and fall smoothly without skewing.

[0027] One stop baffle 13 is provided at each end of the loop roll 4. The stop baffle 13 is provided with an arc-shaped chute 14, and the loop roll 4 passes through the chute 14. The loop roll 4 can slide in the chute 14. The chute 14 can not only guide the swinging path of the loop roll 4 to make the swinging of the loop roll 4 stable and avoid skewing of the loop roll 4, but also limit the maximum swinging range of the loop roll 4, thereby adjusting the rising height of the loop roll 4. Specifically, the roller shafts at both ends of the loop roll 4 extend through the chute 14 to avoid damaging the roller sleeve of the loop roll 4 by friction.

[0028] The stop baffle 13 is provided with an oblong hole 15 for adjusting the height of the stop baffle 13. The stop baffle 13 is installed on the loop body 3 by passing a bolt through the oblong hole 15. By adjusting the position of the bolt screwed into the oblong hole 15, the position of the stop baffle 13 can be adjusted, thereby adjusting the height of the loop roll 4.

[0029] The above has described the present utility model in combination with the best embodiments, but the present utility model is not limited to the disclosed embodiments above, and should cover various modifications and equivalent combinations made according to the essence of the present utility model.

Claims

1. A new type of loop in the double-link four-split rolling process, characterized in that, Comprising: A left connecting rod, a right connecting rod, a cross bar, a sleeve lifting roller, and a cylinder. The cross bar connects the upper ends of the left connecting rod and the right connecting rod. The lower end of the left connecting rod is connected to the left end of the roller shaft of the sleeve lifting roller. The lower end of the right connecting rod is connected to the right end of the roller shaft of the sleeve lifting roller. The cylinder is located above the sleeve lifting roller, and the cross bar is movably connected to the piston rod of the cylinder.

2. A new type of loop of double-link four-split rolling process according to claim 1, characterized in that, A left swing arm is provided at the left end of the sleeve lifting roller, and a right swing arm is provided at the right end of the sleeve lifting roller. The lower end of the left connecting rod is rotatably connected to the left swing arm, and the lower end of the right connecting rod is rotatably connected to the right swing arm.

3. A new type of loop in a double-link four-split rolling process according to claim 2, characterized in that, Also included are a left shaft seat and a right shaft seat. The left swing arm is rotatably mounted on the left shaft seat, and the right swing arm is rotatably mounted on the right shaft seat.

4. A novel double-link four-split rolling process loop according to claim 2, characterized in that, The piston rod of the cylinder is rotatably connected to the cross bar.

5. A novel double-link four-split rolling process loop according to claim 4, characterized in that, The piston rod of the cylinder is connected to the cross bar through a spherical plain bearing.

6. A novel double-link four-split rolling process loop according to any one of claims 2-5, characterized in that, One stop baffle is provided at each end of the sleeve lifting roller. The stop baffle is provided with an arc-shaped chute, and the sleeve lifting roller passes through the chute.

7. A new type of double-link four-split rolling process loop according to claim 6, characterized in that The roller shafts at both ends of the sleeve lifting roller extend through the chute.

8. A novel double-link four-split rolling process loop according to claim 6, characterized in that, The stop baffle is provided with an oblong hole.

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