An adjustment device for a high-precision wear-resistant guide plate used in the production of hot-rolled steel balls.

Abstract

This invention relates to the field of hot rolling mill guide plate adjustment technology, specifically to an adjustment device for a high-precision wear-resistant guide plate used in the production of hot-rolled steel balls. It includes a mounting base, a double-threaded shaft rotatably mounted inside the mounting base, and a drive component for rotating the double-threaded shaft. It also includes a guide plate body disposed at the upper and lower ends of the gap between the double-threaded shaft and a control mechanism for adjusting the up-and-down movement of the guide plate body. This invention utilizes a scanning probe to monitor the wear thickness of the guide plate body in real time, then transmits the information to a control component to drive a drive cylinder. This drives a roller stand to slide on an inclined base and press the upper guide plate body to rotate and adjust the angle, achieving precise adjustment of the guide plate body's tilt angle. This allows the guide plate body, even after excessive wear at one end, to be adjusted and remain parallel to the working area, thus continuing to work and increasing the service life of the guide plate body.

Description

Technical Field

[0001] This invention relates to the field of hot rolling mill guide plate adjustment technology, and in particular to an adjustment device for a high-precision wear-resistant guide plate used in the production of hot rolled steel balls. Background Technology

[0002] In the hot-rolled steel ball production process, the steel ball billet is heated to a suitable temperature in a continuous heating furnace before rolling. After that, the red-hot steel billet is fed into the steel ball rolling mill and rotates between rolls with special spiral grooves, and is continuously rolled into steel balls.

[0003] Guide plates can guide round steel bars to accurately enter the rolling mill's pass and stabilize their position during the rolling process, reducing swaying and deviation. This lowers the risk of production accidents caused by steel bar misalignment or jumping, and ensures that the round steel bars move along a predetermined trajectory during rolling. This helps improve the dimensional accuracy and shape consistency of the steel balls, reduces equipment vibration and wear, and, through proper design and use of guide plates, avoids unnecessary collisions and friction between the round steel bars and other parts of the rolling mill, reducing defects such as scratches and pitting on the surface of the steel balls, thereby improving the surface quality of the steel balls.

[0004] Because the guide plate is in close contact with the spiral roller, the round steel enters between the guide plate and the roller. As the roller rotates, the roller and the guide plate squeeze the round steel to roll and form it. However, with the continuous squeezing of the round steel, the guide plate is prone to wear, which affects the forming accuracy. When producing high-precision steel balls, even slight wear on the surface of the guide plate will affect the accuracy of the steel balls. The traditional method is to replace the guide plate. Too many guide plate replacements will increase the debugging cost. At the same time, a large number of slightly worn guide plates are discarded, which also increases the production cost.

[0005] When the round steel passes between the guide plate and the spiral rolls, the round steel is rotated and extruded through the threads of the rolls. When it first enters the rolls, the shape of the round steel is closer to a cylinder, the extrusion intensity is high, and the wear on the guide plate is greater. However, after it is extruded into a spherical shape, the extrusion intensity on the guide plate decreases, resulting in greater wear on the guide plate closer to the entrance of the round steel.

[0006] To address the aforementioned issues, existing technologies urgently need improvement. Summary of the Invention

[0007] This invention provides an adjustment device for a high-precision wear-resistant guide plate used in the production of hot-rolled steel balls. By using a scanning mechanism in conjunction with an adjustment mechanism, the guide plate can be adjusted at the upper and lower ends of the roll, allowing the guide plate with slight wear to be adjusted for continued use and extending its service life. Furthermore, through a progressive support structure, the guide plate can be tilted, thereby allowing the guide plate near the round steel inlet to rise at a greater angle, thus solving the problems mentioned in the background art.

[0008] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0009] This invention provides an adjustment device for a high-precision wear-resistant guide plate for hot-rolled steel ball production, including a mounting base, a double-threaded shaft rotatably mounted inside the mounting base, and a driving component for driving the double-threaded shaft to rotate. It also includes a guide plate body disposed at the upper and lower ends of the gap between the double-threaded shaft and a control mechanism for controlling the up-and-down movement of the guide plate body.

[0010] The control mechanism includes a scanning component, an adjustment support component, and a guide plate support component. The adjustment support component includes a mounting base disposed inside the mounting seat, and the guide plate body is fixed to the end of the mounting base. The scanning component is disposed below the guide plate body to form wear monitoring.

[0011] The adjustment support assembly also includes a linkage adjustment assembly and a dynamic support assembly disposed at the bottom edge of the mounting base. The linkage adjustment assembly includes an inclined base, an adjustment stand slidably mounted on the inclined base, and a drive cylinder. The scanning assembly is connected to the drive cylinder. The drive cylinder drives the adjustment stand to slide along the inclined base, and the end of the adjustment stand supports the bottom surface of the mounting base by rollers. This is used to dynamically monitor the guide plate body and adjust the vertical position and tilt angle of the guide plate body.

[0012] Furthermore, the inclined base is a concave base with high sides and low middle. The guide plate body is horizontally placed on the inclined base and locked by a threaded locking component. The middle position of the guide plate body is suspended. The guide plate support component acts on the suspended middle position of the guide plate body. The dynamic support component acts on the bottom edge of the inclined base. The linkage adjustment component acts on the bottom surface of the inclined base.

[0013] Furthermore, the dynamic support assembly includes multiple support cylinders distributed at the corners of the mounting base and support pads disposed at the output ends of the support cylinders. The support pads are soft on top and hard on the bottom, with a rubber pad on top, which is used to abut against the bottom edge of the mounting base to form support. The soft-on-top, hard-on-bottom structure maintains close contact through soft deformation when the mounting base is tilted, ensuring the stability of the mounting base and guide plate body after the angle is adjusted. In addition, multiple sets of support cylinders are distributed at the bottom edge of the mounting base to form multi-point adaptive support.

[0014] In this technical solution, a linkage adjustment assembly consisting of an inclined base, a sliding roller stand, and a drive cylinder is used to achieve precise adjustment of the tilt angle of the guide plate body. This allows the guide plate body, after excessive wear at one end, to be adjusted back to remain parallel to the working area and continue working, thereby increasing the service life of the guide plate body.

[0015] Furthermore, the guide plate support assembly includes a support clamp block and an elastic support member disposed at the bottom end of the guide plate body. The elastic support member includes a damping member vertically disposed on the mounting base and a support spring sleeved on the outside of the damping member. The top end of the damping member is connected to the support clamp block.

[0016] Furthermore, the guide plate support assembly also includes a linkage support component, which includes a limiting component and a connecting frame. The limiting component is fixed to the top surface of the mounting base, and the two ends of the connecting frame are rotatably connected to the support clamp and the limiting component, respectively.

[0017] The limiting member is located between the two support blocks, and its two sides are connected to the two support blocks respectively through symmetrically arranged connecting frames to form a triangular support network. Multiple linkage support members are connected in series through the connecting frames to form a continuous support structure.

[0018] In this technical solution, the combination of springs and damping components absorbs the impact force when the steel ball squeezes the guide plate body, avoiding hard contact damage to the guide plate body. In addition, the triangular mesh support formed by the connecting frame and series limiting components under the guide plate body disperses the local pressure to the entire mounting base, preventing stress concentration.

[0019] Furthermore, the scanning assembly includes a scanning probe and a control component. The scanning probe is disposed on one side of the support clamping block, and the detection end of the scanning probe is tilted towards the wear surface of the guide plate body. The control component is disposed outside the side wall of the mounting base.

[0020] The control unit is connected to the scanning probe and the drive cylinder via a circuit, and is used to control the action of the drive cylinder based on wear data.

[0021] In this technical solution, the scanning probe monitors the wear thickness of the guide plate body in real time and then transmits the information to the control components to drive the drive cylinder to work, thereby automatically adjusting the tilt angle of the guide plate body and realizing closed-loop control from wear to adjustment.

[0022] Furthermore, the guide plate body includes a base plate and a top plate stacked together, and both the base plate and the top plate are made of high-strength steel, with a wear-resistant layer welded to the top surface of the top plate.

[0023] Furthermore, the top plate has a streamlined narrowing structure, and the width of the plate near the inlet end of the gap between the double threaded shafts is greater than the width of the plate near the outlet end.

[0024] In this technical solution, the three-layer composite structure formed by the base plate, top plate and wear-resistant layer can enhance the compressive strength of the high-wear area and improve the overall service life. In addition, the width of the plate near the inlet end of the double-threaded shaft gap is greater than the width of the plate near the outlet end, making the wear resistance of the top plate stronger and more suitable for the high-intensity wear state at the inlet of the double-threaded shaft.

[0025] Compared with the prior art, the present invention provides an adjustment device for a high-precision wear-resistant guide plate for hot-rolled steel ball production, which has the following beneficial effects:

[0026] This invention utilizes a scanning probe to monitor the wear thickness of the guide plate body in real time, then transmits the information to the control components and drives the drive cylinder to work. The drive roller stand slides on the inclined base and presses the upper guide plate body to rotate and adjust the angle, thereby achieving precise adjustment of the tilt angle of the guide plate body. This allows the guide plate body, after excessive wear at one end, to be adjusted and continue to be parallel to the working area, thus continuing to work and increasing the service life of the guide plate body.

[0027] During the process of guiding the steel ball, the guide plate body is subjected to extrusion pressure. At this time, the spring and damping components below the guide plate body absorb the impact force generated by the extrusion of the steel ball, avoiding hard contact. In addition, multiple sets of connecting frames and limiting components are connected below the guide plate body to form a triangular mesh support, which disperses the local pressure generated during extrusion to the entire mounting base, further dispersing the extrusion pressure and protecting the guide plate body.

[0028] In the structure of the guide plate body, the width of the top plate near the inlet end of the double threaded shaft gap is greater than the width of the plate near the outlet end, which makes the wear resistance of the top plate stronger and more adaptable to the high-intensity wear state at the inlet of the double threaded shaft. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of the adjustment device for the high-precision wear-resistant guide plate for hot-rolled steel ball production of the present invention in use.

[0030] Figure 2 This is a schematic diagram showing the structural distribution of the guide plate body within the mounting base and the double-threaded shaft in this invention;

[0031] Figure 3 This is a schematic diagram showing the structural distribution of the guide plate body, scanning component, and adjustment support component in this invention;

[0032] Figure 4 This is a structural breakdown diagram of the double-threaded shaft roller, guide plate body, scanning assembly, and adjustment support assembly in this invention.

[0033] Figure 5 This is a schematic diagram showing the structural distribution of the guide plate body and the adjustment support assembly in this invention;

[0034] Figure 6 for Figure 5 Enlarged view of the structure at point A in the middle;

[0035] Figure 7 This is a schematic diagram showing the structural distribution of the scanning component and the guide plate support component in this invention;

[0036] Figure 8This is a schematic diagram of the structure of the guide plate body in this invention.

[0037] In the diagram: 1. Mounting base; 2. Double-threaded shaft; 3. Drive component; 4. Guide plate body; 41. Base plate; 42. Top plate; 43. Wear-resistant layer; 5. Scanning assembly; 51. Scanning probe; 52. Control component; 6. Adjustment support assembly; 61. Mounting base; 62. Linkage adjustment assembly; 621. Inclined base; 622. Adjustment stand; 623. Drive cylinder; 63. Dynamic support assembly; 631. Support cylinder; 632. Support pad; 7. Guide plate support assembly; 71. Support clamp; 72. Elastic support component; 721. Support spring; 722. Damping component; 73. Linkage support component; 731. Connecting frame; 732. Limiting component. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0039] Reference Figures 1-8 As shown, the present invention provides an adjustment device for a high-precision wear-resistant guide plate for hot-rolled steel ball production. In order to make the guide plate adjustable at the upper and lower ends of the rollers, the guide plate with slight wear can be adjusted to continue to be used, and the guide plate angle can be adjusted according to the wear condition of the guide plate, thereby extending the service life of the guide plate. The device includes a mounting base 1 and a double threaded roller 2 rotatably mounted inside the mounting base 1. The double threaded roller 2 includes two threaded rollers with a certain distance between them. A driving component 3 for driving the double threaded roller 2 to rotate is provided on one side of the mounting base 1. The device also includes a guide plate body 4 disposed inside the mounting base 1 and a control mechanism for controlling the up and down movement of the guide plate body 4. There are two guide plate bodies 4, which are located at the upper and lower ends of the gap between the two threaded rollers.

[0040] The control mechanism includes scanning component 5, adjustment support component 6, and guide plate support component 7;

[0041] like Figure 2 and Figure 5 As shown, the adjustment support assembly 6 includes a mounting base 61, a linkage adjustment assembly 62, and a dynamic support assembly 63. The mounting base 61 is located inside the mounting base 1, and the guide plate body 4 is located at the end of the mounting base 61. The inclined base 621 is a concave base with high sides and low middle, and the guide plate body 4 is placed horizontally on the inclined base 621, so that the middle part of the guide plate body 4 is suspended relative to the middle of the inclined base 621.

[0042] The linkage adjustment assembly 62 includes an inclined base 621, an adjustment stand 622, and a drive cylinder 623. The inclined base 621 is located directly below the mounting base 61. The adjustment stand 622 is slidably mounted on the inclined base 621, and its end supports the mounting base 61. The drive cylinder 623 is located at the bottom of the mounting base 1, and its drive end is connected to the adjustment stand 622, so that the drive cylinder 623 can drive the adjustment stand 622 to slide along the inclined base 621.

[0043] The end of the adjusting stand 622 is a rotating roller, and the roller is in contact with the bottom surface of the mounting base 61. When the adjusting stand 622 slides along the inclined base 621, the roller rolls to support the bottom surface of the mounting base 61 and supports the mounting base 61 during the rolling process, making it smoother and reducing bottom wear.

[0044] like Figure 6 and Figure 7 As shown, the guide plate support assembly 7 includes a support clamp 71, an elastic support member 72, and a linkage support member 73. The support clamp 71 is located at the bottom end of the guide plate body 4. The elastic support member 72 includes a support spring 721 and a damping member 722. The damping member 722 is vertically mounted on the mounting base 61, and its end is connected to the support clamp 71. The support spring 721 is located outside the damping member 722. Through the elastic support formed by the elastic support member 72 below the guide plate body 4 and the support clamp 71, when the steel ball makes hard contact with the guide plate body 4, it provides downward elastic buffering to the guide plate body 4. Compared with hard support for the guide plate body 4, elastic buffering can increase the protection of the guide plate body 4.

[0045] The linkage support component 73 includes a connecting frame 731 and a limiting component 732. The limiting component 732 is fixedly installed on the top surface of the mounting base 61. One end of the connecting frame 731 is rotatably connected to the support clamp 71, and the other end is rotatably connected to the limiting component 732.

[0046] The limiting member 732 is located between the two support clamps 71, and the two sides of the limiting member 732 are connected to the support clamps 71 on both sides through connecting brackets 731, such as... Figure 6 As shown, multiple linkage support components 73 are connected sequentially by connecting frame 731, forming a continuous support structure below the guide plate body 4 and the support clamp 71. When the guide plate body 4 and the support clamp 71 are subjected to continuous compression from the steel ball as the steel ball moves, the force can be transmitted to the limiting component 732 through the connecting frame 731, forming full-range support.

[0047] like Figure 4 , Figure 6 and Figure 7As shown, the scanning assembly 5 includes a scanning probe 51 and a control component 52. The scanning probe 51 is located on one side of the support clamp 71 and is inclined to scan the worn end of the guide plate body 4. The control component 52 is located on one side of the mounting base 1 and is connected to the scanning probe 51 via a line. The control component 52 is also connected to the drive cylinder 623 via a line, so that the scanning probe 51 can scan the wear degree of the guide plate body 4, and the control component 52 controls the drive cylinder 623 to work, thereby driving the adjustment stand 622 to move along the inclined base 621, thereby using the adjustment stand 622 to support one end of the mounting base 61, so that the mounting base 61 and the guide plate body 4 are in an inclined state, thereby adjusting the angle of the guide plate body 4.

[0048] like Figure 5 As shown, the dynamic support assembly 63 includes a support cylinder 631 and a support pad 632. The support cylinder 631 is disposed inside the mounting base 1, and the support pad 632 is disposed at the output end of the support cylinder 631. The support pad 632 abuts against the edge of the mounting base 61 under the drive of the support cylinder 631.

[0049] The support pad 632 is a soft pad on top and a hard pad on the bottom, and the soft part of the upper part is a rubber pad. Since the mounting base 61 rotates at a small angle, the soft part of the upper part of the support pad 632 can deform accordingly when the mounting base 61 rotates at a small angle, so as to continue to support the mounting base 61.

[0050] Multiple dynamic support components 63 are distributed at the inner corners of the mounting base 1, and the multiple dynamic support components 63 act on the two sides of the mounting base 61 respectively, forming dynamic support for the mounting base 61, so that after the mounting base 61 is adjusted, the multiple dynamic support components 63 can still stably support the mounting base 61.

[0051] like Figure 8 As shown, the guide plate body 4 includes a base plate 41, a top plate 42 and a wear-resistant layer 43. Both the base plate 41 and the top plate 42 are high-strength steel plates, and the top plate 42 is set above the base plate 41. The wear-resistant layer 43 is welded to the top surface of the top plate 42, thereby increasing the wear resistance of the top surface of the top plate 42.

[0052] like Figure 8 As shown, the top plate 42 has a streamlined narrowing shape, and the width of one end of the top plate 42 near the gap inlet of the double threaded shaft 2 is greater than the width of the other end, which makes the end of the guide plate body 4 near the gap inlet of the double threaded shaft 2 stronger.

[0053] Working Principle: When heated round steel enters between the double-threaded rollers 2 inside the mounting base 1, the guide plate body 4 will limit and guide the round steel above and below the double-threaded rollers 2. As the double-threaded rollers 2 rotate, the round steel is squeezed into a spherical state between the continuously rotating threaded plates and the guide plate body 4. During the process, the compression of the round steel on the guide plate body 4 is reduced by the top plate 42 and wear-resistant layer 43 of the guide plate body 4. Furthermore, the support spring 721 and damping element 722 form elastic support under the guide plate body 4 and the support clamp 71. In addition, when the guide plate body 4 is squeezed by the round steel, the connecting frame 731 below the support clamp 71 will bear the force and transmit it to the limiting element 732. Through the sequential connection of multiple limiting elements 732 and connecting frames 731, a continuous support structure is formed under the guide plate body 4 and the support clamp 71. During the process, the force is continuously dispersed to form full-range support. When the side of the guide plate body 4 near the round steel inlet is worn, the scanning probe 51 on the lower side of the guide plate body 4 is activated to scan the wear degree of the guide plate body 4. The wear value of the guide plate body 4 is transmitted to the control component 52, which then controls the drive cylinder 623 to work, driving the adjustment stand 622 to move along the inclined base 621. The rollers at the end of the adjustment stand 622 roll and support one end of the mounting base 61, so that the mounting base 61 and the guide plate body 4 are in an inclined state, thereby adjusting the angle of the guide plate body 4. Through the dynamic support of multiple sets of support pads 632 and support cylinders 631 under the mounting base 61, the mounting base 61 and the guide plate body 4 can still be stably supported after the angle of the mounting base 61 and the guide plate body 4 is adjusted, so that the worn guide plate body 4 can continue to be used relative to the double threaded shaft 2, reducing the frequency of replacing the guide plate body 4.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustment device for a high-precision wear-resistant guide plate used in the production of hot-rolled steel balls, comprising a mounting base (1), a double-threaded shaft (2) rotatably mounted inside the mounting base (1), and a driving component (3) for driving the double-threaded shaft (2) to rotate, characterized in that, Also includes: The guide plate body (4) and the control mechanism for moving up and down are set at the upper and lower ends of the gap of the double threaded shaft (2); The control mechanism includes a scanning component (5), an adjustment support component (6), and a guide plate support component (7). The adjustment support component (6) includes a mounting base (61) disposed inside the mounting base (1), and the guide plate body (4) is fixed at the end of the mounting base (61). The scanning component (5) is disposed below the side of the guide plate body (4) to form wear monitoring. The adjustment support assembly (6) also includes a linkage adjustment assembly (62) and a dynamic support assembly (63) disposed at the bottom edge of the mounting base (61). The linkage adjustment component (62) includes an inclined base (621), an adjustment stand (622) slidably mounted on the inclined base (621), and a drive cylinder (623). The scanning component (5) is connected to the drive cylinder (623). The drive cylinder (623) drives the adjustment stand (622) to slide along the inclined base (621), and the end of the adjustment stand (622) is supported by a roller on the bottom surface of the mounting base (61) for dynamically monitoring the guide plate body (4) and adjusting the vertical position and tilt angle of the guide plate body (4). The inclined base (621) is a concave base with high sides and low middle. The guide plate body (4) is placed horizontally on the inclined base (621) and locked by a threaded locking component. The middle position of the guide plate body (4) is suspended. The guide plate support component (7) acts on the suspended middle position of the guide plate body (4). The dynamic support component (63) acts on the bottom edge of the inclined base (621). The linkage adjustment component (62) acts on the bottom surface of the inclined base (621). The dynamic support assembly (63) includes multiple support cylinders (631) distributed at the corners of the mounting base (1) and a support pad (632) set at the output end of the support cylinder (631). The support pad (632) is soft on top and hard on the bottom, and the top is a rubber pad, which is used to abut against the bottom edge of the mounting base (61) to form support. The guide plate support assembly (7) includes a support clamp (71) and an elastic support member (72) disposed at the bottom end of the guide plate body (4). The elastic support member (72) includes a damping member (722) vertically disposed on the mounting base (61) and a support spring (721) sleeved on the outside of the damping member (722). The top end of the damping member (722) is connected to the support clamp (71). The guide plate support assembly (7) also includes a linkage support (73), which includes a limiting member (732) and a connecting frame (731). The limiting member (732) is fixed to the top surface of the mounting base (61), and the two ends of the connecting frame (731) are rotatably connected to the support clamp (71) and the limiting member (732). The limiting member (732) is located between the two support clamps (71), and its two sides are connected to the two support clamps (71) respectively through the symmetrically arranged connecting frame (731) to form a triangular support network. Multiple linkage support members (73) are connected in series through the connecting frame (731) to form a continuous support structure.

2. The adjustment device for a high-precision wear-resistant guide plate used in hot-rolled steel ball production according to claim 1, characterized in that, The scanning assembly (5) includes a scanning probe (51) and a control component (52). The scanning probe (51) is located on one side of the support clamp (71), and the detection end of the scanning probe (51) is tilted towards the wear surface of the guide plate body (4). The control component (52) is located outside the side wall of the mounting base (1). The control unit (52) is connected to the scanning probe (51) and the drive cylinder (623) via a line, and is used to control the action of the drive cylinder (623) according to the wear data.

3. The adjustment device for a high-precision wear-resistant guide plate for hot-rolled steel ball production according to claim 1, characterized in that, The guide plate body (4) includes a base plate (41) and a top plate (42) stacked together, and both the base plate (41) and the top plate (42) are made of high-strength steel. The top surface of the top plate (42) is welded with a wear-resistant layer (43).

4. The adjustment device for a high-precision wear-resistant guide plate for hot-rolled steel ball production according to claim 3, characterized in that, The top plate (42) has a streamlined narrowing structure, and the width of the plate near the gap inlet end of the double threaded shaft (2) is greater than the width of the plate near the outlet end.

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