Finish rolling entrance side guide mechanism

Abstract

The utility model relates to a kind of finish rolling entry side guide mechanism, comprising: guide body, base, oil cylinder joint, oil cylinder and oil cylinder fixed part;Wherein, the base is located below the bottom plate of guide body, used as the track of guide body sliding;The oil cylinder has fixed end and movable end;The oil cylinder joint is located above the bottom plate of guide body, and is connected with the movable end of the oil cylinder;The oil cylinder fixed part is located above base and is away from the oil cylinder joint one end, and is connected with the fixed end of the oil cylinder.Oil cylinder joint and oil cylinder fixed part are designed on the bottom plate of guide body, when mechanical failure, guide does not need to exit rolling mill, maintenance personnel also do not need to enter guide bottom operation, operation space is no longer limited, greatly improve maintenance efficiency and safety, also reduce the huge amount of time and resource consumption due to sudden failure.The utility model design mode is simple and convenient, easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of hot-rolled strip steel production, and in particular to a finishing mill inlet side guide mechanism. Background Technology

[0002] The primary function of the finishing mill inlet guide is to guide the strip steel into the mill for normal rolling, while simultaneously aligning the rolled piece with the rolling centerline and preventing the strip head from deviating. This function is mainly achieved through the opening adjustment cylinders on both sides. The inlet-side guide cylinder is installed below the guide frame. If the cylinder experiences malfunctions such as internal unloading, oil leakage at the flange joint, or the cylinder joint pin retraction, numerous safety hazards will arise during maintenance, and the process will be time-consuming and resource-intensive. Utility Model Content

[0003] The main purpose of this utility model is to provide a side guide mechanism for the entry of a precision rolling mill, which solves the technical problem of cylinder failure affecting maintenance operations.

[0004] To achieve the above objectives, this utility model provides a precision rolling mill inlet side guide mechanism, comprising:

[0005] The side guide mechanism includes a guide body, a base, a cylinder connector, a cylinder, and a cylinder fixing part.

[0006] The base is located below the bottom plate of the guide body and serves as a track for the guide body to slide.

[0007] The hydraulic cylinder has a fixed end and a movable end.

[0008] The cylinder connector is located above the bottom plate of the guide body and is connected to the movable end of the cylinder.

[0009] The cylinder fixing part is located above the base and away from the cylinder connector, and is connected to the fixing end of the cylinder.

[0010] In some embodiments, the movable end of the hydraulic cylinder has a cylinder pin hole, and both sides of the hydraulic cylinder connector have holes that mate with the cylinder pin hole and are fixed by bolts.

[0011] In some embodiments, the fixed end of the hydraulic cylinder has protruding trunnions on both the left and right sides, and the fixed part of the hydraulic cylinder has trunnion holes that mate with the protruding trunnions and are nested on the protruding trunnions.

[0012] In some embodiments, the cylinder fixing part includes a trunnion support and a fixing component.

[0013] The fixing part is located above the base, and there are two trunnion supports, which are fixed above the left and right sides of the fixing part respectively; the trunnion holes are opened on the two trunnion supports.

[0014] In some embodiments, the direction of movement of the hydraulic cylinder is parallel to the track on which the guide body slides.

[0015] In some embodiments, the extension range of the hydraulic cylinder is 30 to 730 mm.

[0016] In some embodiments, the trunnion support has two symmetrical bolt holes on each of its left and right surfaces.

[0017] The trunnion supports are located above the left and right sides of the fixing part, respectively. The fixing part has bolt holes in the vertical direction that mate with the trunnion supports. The trunnion supports are fixed to the fixing part by bolts.

[0018] In some embodiments, the guide body is a welded structure, fixed to the base by bolts or welding.

[0019] In some embodiments, the trunnion support has a length of 245-255 mm and a height of 160-170 mm; the fixing part has a length of 365-375 mm and a width of 255-265 mm.

[0020] In some embodiments, the sum of the height of the fixing part and the height of the trunnion support is equal to the sum of the height of the cylinder connector and the height of the welded surface between the guide body and the cylinder connector.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] The aforementioned utility model provides a side guide mechanism for the entry of a finishing mill. A hydraulic cylinder connector and a hydraulic cylinder fixing part are designed on the base plate of the guide body. The hydraulic cylinder has a fixed end and a movable end; the fixed end is connected to the hydraulic cylinder fixing part, and the movable end is connected to the hydraulic cylinder connector, thus positioning the hydraulic cylinder above and fixing it to the base plate. By determining the positions of the hydraulic cylinder connector and the hydraulic cylinder fixing part, the workpiece can move stably along the direction of hydraulic cylinder movement when it enters the mill, solving the technical problem of the guide needing to be withdrawn from the mill in case of hydraulic cylinder failure, which limits the working space for maintenance personnel. Furthermore, this utility model design makes the hydraulic cylinder installation convenient, the fixing method reliable, and the operation simple, reducing the huge time and resource consumption caused by sudden failures, and greatly improving maintenance efficiency and safety. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a front view of the precision rolling inlet side guide mechanism of this utility model;

[0025] The attached figures are labeled as follows:

[0026] 10. Side guide mechanism; 20. Guide body; 21. Base; 22. Hydraulic cylinder connector; 23. Hole; 30. Hydraulic cylinder; 31. Hydraulic cylinder pin hole; 32. Protruding trunnion; 33. Fixed end of hydraulic cylinder; 34. Moving end of hydraulic cylinder; 40. Hydraulic cylinder fixing part; 41. Trunnion support; 42. Fixing part; 43. Trunnion hole; 44. Bolt hole; 45. Bolt

[0027] The implementation, functional features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This application provides a precision rolling mill inlet side guide mechanism, which solves the technical problem of cylinder failure affecting maintenance operations.

[0031] See Figure 1 The image shows a front view of the precision rolling mill inlet side guide mechanism of this utility model. The x-direction is left-right, the y-direction is front-back, and the z-direction is vertical; the cylinder connector 22 is the front end direction, and the trunnion support 41 is the rear end direction.

[0032] This utility model discloses a precision rolling mill inlet side guide mechanism 10, which includes a guide body 20, a base 21, a cylinder connector 22, a cylinder 30, and a cylinder fixing part 40.

[0033] The base 21 is located below the bottom plate of the guide body 20 and serves as a track for the guide body to slide.

[0034] In some embodiments, the guide body 20 is a right-angle welded component, used to ensure that the rolled piece enters and exits stably in the running direction.

[0035] In some embodiments, the guide body 20 consists of two right-angle welded parts. The guide body 20 runs along the track defined by the base 21. At the same time, the internal space of the guide body 20 has a channel that restricts the movement of the workpiece, such as a channel composed of rolls, so that when the workpiece enters and / or leaves the rolls, it travels in a predetermined direction and angle, avoiding wear on the rolls or rolling mill caused by deviation or instability of the workpiece, improving the working efficiency of the rolls and reducing costs.

[0036] The hydraulic cylinder 30 has a fixed end 33 and a movable end 34.

[0037] In some embodiments, the hydraulic cylinder 30 is located on the hydraulic cylinder connector 22 and the hydraulic cylinder fixing part 40; the fixed end 33 of the hydraulic cylinder is fixed on the hydraulic cylinder fixing part 40; and the movable end 34 of the hydraulic cylinder is fixed on the hydraulic cylinder connector 22.

[0038] The cylinder connector 22 is located above the bottom plate of the guide body 20 and is connected to the movable end 34 of the cylinder.

[0039] In some embodiments, the cylinder connector 22 is fixed to the top of the guide body 20 base plate by welding. The bottom of the guide body 20 base plate is connected to the base 21. The cylinder connector 22 is an upward-facing U-shaped slot that is connected to the movable end 34 of the cylinder.

[0040] The cylinder fixing part 40 is located above the base 21 and away from the cylinder connector 22, and is connected to the cylinder fixing end 33.

[0041] Causes of hydraulic cylinder malfunctions include internal cylinder unloading, oil leakage at the flange joint, and cylinder joint pin retraction. In related technologies, the hydraulic cylinder of the finishing mill inlet side guide mechanism is located at the bottom. Maintenance personnel need to remove the guide body from the rolling mill, raise the front stand loop, and enter the bottom of the guide for maintenance work. Due to the limited working space, there are numerous safety hazards during the operation, and it also requires a huge amount of time and resources.

[0042] This application optimizes the structure of the base, cylinder connector, cylinder, and cylinder fixing part. The cylinder is located above the base with fewer obstructions above it, which facilitates maintenance, improves maintenance safety, and reduces the huge time and resource consumption caused by sudden failures.

[0043] The above-described utility model provides a side guide mechanism for the entry of a finishing mill. The side guide mechanism includes a guide body, a base, a cylinder connector, a cylinder, and a cylinder fixing part. The cylinder connector is located above the base plate of the guide body and is connected to the movable end of the cylinder. The cylinder fixing part is located above the base and away from the cylinder connector, and is connected to the fixed end of the cylinder. Thus, the cylinder is positioned above the base plate and fixed. By determining the positions of the cylinder connector and the cylinder fixing part, the workpiece can move stably along the direction of cylinder movement when it enters the mill, solving the technical problem that the guide needs to be withdrawn from the mill when the cylinder malfunctions, limiting the working space for maintenance personnel. Furthermore, this utility model design makes cylinder installation convenient, fixing reliable, and operation simple, greatly improving maintenance efficiency and safety. It solves the technical problem of cylinder malfunctions affecting maintenance operations.

[0044] In some embodiments, see Figure 1 The movable end 34 of the hydraulic cylinder has a hydraulic cylinder pin hole 31, and the hydraulic cylinder connector 22 has holes 23 on both the left and right sides that mate with the hydraulic cylinder pin hole 31 and are fixed by bolts 45.

[0045] In some embodiments, see Figure 1 The cylinder connector 22 has holes 23 on both the left and right sides along the x-axis that mate with the cylinder pin hole 31, and is fixed by bolts 45. The cylinder pin hole 31 is located at the movable end 34 of the cylinder. When the movable end 34 of the cylinder extends to its maximum extent, the position of the cylinder connector 22 on the bottom plate of the guide body 20 is determined by the position of the cylinder pin hole 31.

[0046] In some embodiments, see Figure 1 The fixed end 33 of the oil cylinder has protruding trunnions 32 on both sides, and the fixed part 40 of the oil cylinder has trunnion holes 43 that cooperate with the protruding trunnions 32 and are nested on the protruding trunnions 32.

[0047] In some embodiments, see Figure 1 The cylinder fixing part 40 includes a trunnion support 41 and a fixing part 42.

[0048] The fixing part 42 is located above the base 21, and there are two trunnion supports 41, which are fixed above the left and right sides of the fixing part 42 respectively; the trunnion holes 43 are opened on the two trunnion supports 41.

[0049] In some embodiments, see Figure 1 The trunnion support 41 has symmetrical trunnion holes 43 along the horizontal direction of the x-axis. The trunnion holes 43 are engaged with the protruding trunnion 32 on the oil cylinder 30, so that the fixed end 33 of the oil cylinder is fixed on the trunnion support 41.

[0050] In some embodiments, see Figure 1 The direction of movement of the hydraulic cylinder 30 is parallel to the sliding track of the guide body 20.

[0051] In some embodiments, the movement direction of the hydraulic cylinder is set parallel to the sliding track of the guide body. The linear movement of the hydraulic cylinder ensures the guide body remains stable during sliding, preventing deviation or tilting. This also eliminates the need for additional transmission mechanisms, thereby reducing failure rates and maintenance costs. Furthermore, in the event of a failure, it reduces the difficulty and time required for repairs, thus improving production efficiency.

[0052] In some embodiments, the extension range of the hydraulic cylinder 30 is 30 to 730 mm.

[0053] In some embodiments, the guide body slides on the base. When the guide body slides to the trunnion support on the base, at this point, the cylinder extension is at its maximum stroke, and the guide body closes to its minimum position. The cylinder connector on the bottom plate of the guide body is close to the trunnion support. This ensures that the cylinder is fixed to the trunnion support and the cylinder connector.

[0054] The range of cylinder extension determines the linear motion speed and force output by the cylinder, which will affect the efficiency of the workpiece entering the finishing mill inlet side guide mechanism. When the cylinder extension is at its maximum stroke, the guide body can close to its minimum; when the cylinder extension is at its minimum stroke, the guide body can open to its maximum.

[0055] For example, excessive extension / retraction may increase the mechanical stress on the hydraulic cylinder, especially at the connection between the piston rod and the cylinder body. This could lead to piston rod bending or cylinder body deformation, affecting the cylinder's sealing and stability. Excessive extension / retraction may also subject the seals to excessive stress, causing wear or damage and resulting in oil leakage. Furthermore, excessive extension / retraction may cause pressure variations in the hydraulic system, affecting system stability and response speed. This could lead to uneven extension / retraction speeds in the cylinder, resulting in a creeping phenomenon.

[0056] For example, insufficient extension / retraction will limit the working stroke of the hydraulic cylinder, leading to reduced equipment efficiency and failure to achieve the expected working effect. Insufficient extension / retraction may also cause insufficient pressure in the hydraulic system, affecting the thrust and speed of the hydraulic cylinder. This may result in an excessively slow extension / retraction speed of the hydraulic cylinder, failing to meet work requirements; it may also lead to insufficient oil flow in the hydraulic system, affecting the system's response speed. This may cause a delay in the extension / retraction action of the hydraulic cylinder, affecting the operating efficiency of the equipment.

[0057] In some embodiments, see Figure 1 The trunnion support 41 has two symmetrical bolt holes 44 on each of its left and right sides.

[0058] The trunnion support 41 is located above the left and right sides of the fixing part 42. The fixing part 42 has bolt holes 44 in the vertical direction that mate with the trunnion support 41. The trunnion support 41 is fixed to the fixing part 42 by bolts 45.

[0059] In some embodiments, the fixing part 42 is located above the base 21 at the end away from the cylinder connector 22.

[0060] In some embodiments, see Figure 1 The trunnion supports 41 are symmetrically positioned above the left and right sides of the fixing part 42, and each of the upper surfaces of the left and right sides of the trunnion supports 41 has two symmetrical bolt holes 44. The fixing part 42 has bolt holes 44 corresponding to the positions on the trunnion supports 41 along the vertical direction of the z-axis. The trunnion supports 41 and the fixing part 42 are fixed together by bolts 45 that engage well with the bolt holes 44.

[0061] In some embodiments, the guide body is a welded structure, which is fixed to the base by bolts or welding.

[0062] In some embodiments, the guide body is directly fixed to the base by welding, which has the advantages of high connection strength, good stability, and resistance to loosening. Fixing the guide body to the base with bolts makes installation and disassembly convenient, facilitating maintenance and replacement.

[0063] In some embodiments, the trunnion support 41 has a length of 245-255 mm and a height of 160-170 mm; the fixing part 42 has a length of 365-375 mm and a width of 255-265 mm.

[0064] In some embodiments, see Figure 1 The sum of the height of the fixed part 42 and the height of the trunnion support 41 is equal to the sum of the height of the cylinder connector 22 and the height of the welding surface between the guide body 20 and the cylinder connector 22.

[0065] In some embodiments, ensuring that the fixed and movable ends of the hydraulic cylinder are at the same height ensures that the cylinder is subjected to uniform force during operation, reduces additional stress caused by tilting, and thus improves the stability of the entire system. It also simplifies the installation and commissioning process of the hydraulic cylinder, as there is no need to consider the complexities caused by height differences, making the overall design simpler and clearer.

[0066] This invention provides a side guide mechanism for the finishing mill inlet. By fixing the hydraulic cylinder to the trunnion support and the hydraulic cylinder connector, the guide does not need to be withdrawn from the mill in the event of a mechanical failure, and maintenance personnel do not need to enter the bottom of the guide to work. The working space is no longer restricted, greatly improving maintenance efficiency and safety, and reducing the enormous time and resource consumption caused by sudden failures. This invention has a simple design concept, is easy to operate, improves the working efficiency of the rolling mill rolls, and reduces or avoids wear or collision between the rolling mill rolls and the mill.

[0067] The above technical solutions of this utility model are merely preferred embodiments and do not limit the patent scope of this utility model. All equivalent structural transformations made under the technical concept of this utility model using the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this utility model.

Claims

1. A finishing entry side guide mechanism characterized by, The utility model relates to a side guide mechanism (10) for the guide and protection of the side of the workpiece, comprising: The side guide mechanism (10) comprises a guide body (20), a base (21), a cylinder joint (22), a cylinder (30) and a cylinder fixing part (40); The base (21) is located below the bottom plate of the guide body (20) and serves as a track for the sliding of the guide body; The cylinder (30) has a fixed end (33) and a movable end (34); The cylinder joint (22) is located above the bottom plate of the guide body (20) and is connected to the movable end (34) of the cylinder; The cylinder fixing part (40) is located above the base (21) and away from one end of the cylinder joint (22) and is connected to the fixed end (33) of the cylinder.

2. The finishing entry side guide according to claim 1, characterized in that, The movable end (34) of the cylinder has a cylinder pin hole (31), and the left and right sides of the cylinder joint (22) each have a hole (23) that cooperates with the cylinder pin hole (31) and is fixed by a bolt (45).

3. The finishing entry side guide according to claim 1, wherein The left and right sides of the fixed end of the cylinder have a protruding trunnion (32), and the cylinder fixing part (40) has a trunnion hole (43) that cooperates with the protruding trunnion (32) and is nested on the protruding trunnion (32).

4. The finishing entry side guide according to claim 3, wherein The cylinder fixing part (40) comprises a trunnion support (41) and a fixing part (42); The fixing part (42) is located above the base (21), the number of trunnion supports (41) is two, and each is fixed above the left and right sides of the fixing part (42); the trunnion hole (43) is provided on the two trunnion supports (41).

5. The finishing entry side guide according to claim 1, wherein The moving direction of the cylinder (30) is parallel to the track for the sliding of the guide body (20).

6. The finishing entry side guide according to claim 4, wherein The extension range of the cylinder (30) is 30-730 mm.

7. The finishing entry side guide according to claim 4, wherein The left and right sides of the trunnion support (41) each have two symmetrical bolt holes (44) on the surface; The trunnion supports (41) are respectively located above the left and right sides of the fixing part (42), the fixing part (42) has bolt holes (44) that cooperate with the trunnion supports (41) in the vertical direction, and the trunnion supports (41) are fixed on the fixing part (42) by bolts (45).

8. The finishing entry side guide according to claim 1, wherein The guide body is a welded structure and is fixed on the base by bolts or welding.

9. The finishing entry side guide according to claim 7, wherein The length of the trunnion support (41) is 245-255 mm, and the height is 160-170 mm; the length of the fixing part (42) is 365-375 mm, and the width is 255-265 mm.

10. The finishing entry side guide according to claim 7, wherein The sum of the height of the fixing part (42) and the height of the trunnion support (41) is equal to the sum of the height of the cylinder joint (22) and the height of the welding surface between the guide body (20) and the cylinder joint (22).

Images