Upper roller spindle replacing device and method for hot-rolled section steel straightening machine

Abstract

The invention belongs to the technical field of metallurgical machinery, and particularly relates to an upper roller spindle replacement device and method for a hot-rolled section steel straightener, an upper roller spindle is supported and fixed by a V-shaped supporting seat, and the upper roller spindle is pushed into or pulled out of the straightener by moving a replacement trolley along an H-shaped guide rail, so that the stable assembly of the upper roller spindle is realized; and safety and reliability are improved. And the position of the upper roller main shaft can be adjusted by adjusting the supporting seat, so that the bearing seat of the upper roller main shaft can be accurately aligned to the mounting position in the memorial archway, and higher safety is realized while accurate mounting is realized. Besides, the in-place installation state of the upper roller spindle is fed back in real time through the detection module, an operator can conveniently judge whether installation is in place or not, and it is guaranteed that the upper roller spindle is rapidly, accurately and safely replaced.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical machinery technology, specifically relating to a device and method for replacing the upper roller spindle of a hot-rolled steel straightening machine. Background Technology

[0002] Hot-rolled steel sections require a straightening process during production to ensure that their dimensions and straightness meet requirements. Hot-rolled steel section straightening machines generally consist of upper and lower rollers and spindles. These spindles wear down over time and need to be replaced periodically.

[0003] Currently, the replacement of the upper roller spindle is mostly done manually with simple tools, using a crane and a hand-operated hoist to pull the worn upper roller spindle out from one side of the straightening machine. The upper roller spindle is heavy, and during hoisting and positioning, it relies heavily on the operator's experience, resulting in poor stability and a high risk of roller slippage or collision, posing a serious safety threat to equipment and personnel. The replacement process requires multiple operators, repeated adjustments to the crane position, difficulty in centering, and is time-consuming, severely impacting the production line's operating rate. Manual operation cannot guarantee that the upper roller spindle is accurately and smoothly fed into or removed from the designated window of the straightening machine's archway, easily damaging the roller bearing housing or the inner wall of the archway. Therefore, there is an urgent need for a new type of upper roller spindle replacement device for hot-rolled steel straightening machines to solve these problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an upper roller main shaft replacement device for a steel profile straightening machine that is low in manufacturing cost, simple in structure, easy to promote and apply on existing straightening machines, precise and convenient in operation, improves the efficiency of upper roller main shaft replacement, has high safety, strong stability, accurate positioning, and reasonable structure.

[0005] This invention utilizes a V-shaped support base to support and fix the upper roller main shaft. By moving a replacement trolley along an H-shaped guide rail, the upper roller main shaft is pushed into or pulled out of the straightening machine, achieving stable assembly of the upper roller main shaft and making it safer and more reliable. Furthermore, the position of the upper roller main shaft can be adjusted by adjusting the support base, ensuring that the bearing housing of the upper roller main shaft can be precisely aligned with the installation position within the archway, making installation both precise and safer. In addition, this invention uses a detection module to provide real-time feedback on the installation status of the upper roller main shaft, facilitating operators to determine whether the installation is in place and ensuring quick, accurate, and safe replacement of the upper roller main shaft.

[0006] The technical problem to be solved by the present invention is achieved by the following technical solution: a replacement device for the upper roller main shaft of a hot-rolled steel straightening machine, used for replacing the upper roller main shaft of a hot-rolled steel straightening machine, the hot-rolled steel straightening machine includes a straightening machine frame and an upper roller main shaft, and the replacement device includes a replacement trolley, an H-shaped guide rail and a detection module; The H-shaped guide rail is connected to the straightening machine frame. The H-shaped guide rail is located directly below the upper roller main shaft, and the length direction of the H-shaped guide rail is parallel to the extension direction of the upper roller main shaft. The replacement trolley is set inside an H-shaped guide rail; The replacement trolley includes a support plate and a support base. The two support plates are arranged in a V-shape, and a support base is arranged parallel to each support plate. The distance between the support base and the support plate is adjustable. A detection module is provided between the support plate and the support base; The detection module includes a metal pad connected in series with wires, an indicator light, and a battery pack. The support base is made of insulating material, the metal pad is placed on the support base, and the battery pack is connected to the support plate through wires. The support plate is electrically connected to the H-shaped guide rail.

[0007] Preferably, the replacement trolley of the present invention includes a frame body, a support column and wheels; The support plate is positioned above the main body of the vehicle frame and on both sides of the main body of the vehicle frame. The main body of the vehicle frame is provided with support columns at both ends; Two rotatable wheels are positioned below the supporting column; The wheel is mounted in a slot on an H-shaped guide rail.

[0008] Preferably, the trolley replacement device further includes a baffle plate, which is disposed at the edge of the slot of the H-shaped guide rail and located above the wheel. Its main function is to ensure that the trolley moves smoothly within the guide rail, prevent the risk of the trolley tipping over or tilting upwards due to instability or deviation of the trolley's center of gravity, and improve the safety of the entire device.

[0009] Preferably, the wheels are made of wear-resistant material to extend their service life and ensure smooth movement of the trolley frame.

[0010] Preferably, the support base and the support plate are connected by an adjusting screw. By rotating the adjusting screw, the position of the support base can be finely adjusted to adapt to upper roller spindles of different specifications, thus exhibiting strong versatility.

[0011] Preferably, the end of the adjusting screw away from the support base is provided with a handwheel or wrench hole, which facilitates the worker to rotate the adjusting screw and improves the ease of operation.

[0012] This invention also discloses a method for replacing the upper roller main shaft of a hot-rolled steel profile straightener, which utilizes the aforementioned device for replacing the upper roller main shaft of a hot-rolled steel profile straightener, and includes the following steps: When the upper roller spindle to be installed is mounted on the support, the upper roller spindle comes into contact with the support. Because the support is insulated, the electrical signal control circuit in the detection module is not open, and the indicator light does not light up. When the upper roller spindle is installed in place and the upper roller spindle bearing housing is fully in contact with the top pressing screw of the straightener, the current signal in the detection module passes through the support plate, the replacement trolley body, the H-shaped guide rail, the straightener arch, the top pressing screw of the straightener, the upper roller spindle bearing housing, and the metal pad to form a closed loop. At this time, the indicator light will light up.

[0013] Preferably, the present invention allows for the adjustment of the distance between the support base and the support plate to accommodate upper roller spindles of different sizes.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The trolley moves along the H-shaped guide rail to push or pull the upper roller spindle into or out of the straightener, realizing the overall transportation and rapid centering of the upper roller spindle, shortening the changeover time and improving the equipment operating rate.

[0015] 2. The position of the upper roller spindle can also be adjusted by adjusting the support base, ensuring that the bearing housing of the upper roller spindle can be accurately aligned with the installation position inside the archway, thus achieving precise installation and avoiding damage to equipment parts.

[0016] 3. The detection module provides real-time feedback on the installation status, making it easy for operators to determine whether the installation is in place, and enabling fast, accurate, and safe replacement of the upper roller spindle. Attached Figure Description

[0017] Figure 1 This is a perspective view of the upper roller spindle replacement device for the hot-rolled steel straightening machine proposed in this scheme. Figure 2 This is a side view of the upper roller spindle replacement device for the hot-rolled steel straightening machine proposed in this scheme; Figure 3 This is a schematic diagram of the upper roller spindle replacement device for the hot-rolled steel straightening machine proposed in this scheme; Figure 4 This diagram illustrates the positional relationship between the H-shaped guide rail and the straightening machine archway proposed in this scheme. Figure 1 ; Figure 5 This diagram illustrates the positional relationship between the H-shaped guide rail and the straightening machine archway proposed in this scheme. Figure 2 ; Figure 6 This is a schematic diagram illustrating the working principle of the detection module proposed in this solution; In the diagram, replace trolley 1, H-shaped guide rail 2, and detection module 3; Support plate 11, support base 12; Metal pad 31, signal light 32, battery pack 33; The frame body 13, support column 14, wheel 15, baffle 16, and adjusting screw 17. Detailed Implementation

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0019] like Figures 1-5 As shown, the hot-rolled steel profile straightener proposed in this solution has an upper roller main shaft replacement device. This device is used for replacing the upper roller main shaft of the hot-rolled steel profile straightener. The hot-rolled steel profile straightener includes a straightener frame and an upper roller main shaft. The replacement device includes a replacement trolley 1, an H-shaped guide rail 2, and a detection module 3. Both the main body of the replacement trolley 1 and the H-shaped guide rail 2 are made of conductive materials.

[0020] The H-shaped guide rail 2 is connected to the straightener frame by a fastening device. The H-shaped guide rail 2 is located directly below the upper roller main shaft. The length direction of the H-shaped guide rail 2 is parallel to the extension direction of the upper roller main shaft, which prevents the guide rail from shaking or deforming due to force. It can accurately achieve the alignment of the upper roller main shaft with the straightener, avoid misalignment of the upper roller main shaft due to guide rail direction deviation, and ensure the working accuracy of the straightener.

[0021] The replacement trolley 1 is set inside the H-shaped guide rail 2. The length of the H-shaped guide rail is greater than the length of the replacement trolley 1. The length of the H-shaped guide rail is twice the distance between the bearing seats at both ends of the upper roller main shaft, providing ample space for the trolley to move.

[0022] The replacement trolley 1 includes a support plate 11 and a support seat 12. The two support plates 11 are arranged with V-shaped openings facing upwards, and a support seat 12 is arranged parallel above each support plate 112. The distance between the support seat 12 and the support plate 11 is adjustable.

[0023] The angle between the support plate 11 and the frame body 13 is obtuse, which reasonably distributes the weight of the upper roller main shaft, reduces the local stress concentration of the support seat 12 and the frame body 13, improves the overall strength and durability of the support structure, raises the spatial position of the support seat 12, and makes it more in line with the outer contour of the upper roller main shaft, which facilitates the stable placement and positioning of the upper roller main shaft, while reducing the risk of interference between the upper roller main shaft and the support components.

[0024] The support plate 11 provides a stable support angle for the support base 12 and is used to support the upper roller spindle.

[0025] A detection module 3 is provided between the support plate 11 and the support base 12.

[0026] The detection module 3 includes a metal pad 31 connected in series with wires, an indicator light 32, and a battery pack 33. The support base 12 is made of insulating material. The metal pad 31 is placed on the support base 12. The battery pack 33 is connected to the support plate 11 through wires.

[0027] The support plate 11 is electrically connected to the H-shaped guide rail 2. During the installation of the upper roller spindle, when the upper roller spindle is not installed in place, it is not in contact with the straightener body. At this time, the electrical signal control circuit in the detection module 3 is disconnected, and the indicator light 32 is not lit. When the upper roller spindle is installed in place, the upper roller spindle bearing seat is fully engaged and in contact with the top pressing screw of the straightener. At this time, the electrical signal control circuit in the detection module 3 is connected, and the indicator light 32 lights up, thus accurately determining whether the upper roller spindle is installed in place.

[0028] In practical use, first install the H-shaped guide rail 2 and the replacement trolley 1 below the upper roller main shaft that needs to be replaced. Adjust the position of the support seat 12 by rotating the adjusting screw so that the support seat 12 is tightly attached to the bearing seat of the upper roller main shaft that needs to be replaced. Then, disassemble the upper roller main shaft, which is compatible with upper roller main shafts of different specifications and has strong versatility. Then, the operator pushes the replacement trolley 1 along the H-shaped guide rail 2 and pushes out the upper roller main shaft that is above the replacement trolley 1.

[0029] The upper roller spindle to be replaced is placed on the support members at both ends of the replacement trolley 1. The position of the support seat 12 is adjusted by rotating the adjusting screw 17, so that the support seat 12 clamps and fixes the upper roller spindle. It is compatible with upper roller spindles of different specifications and has strong versatility. Then, the operator pushes the replacement trolley 1 to move along the H-shaped guide rail 2. When the upper roller spindle is close to the installation position, the position of the upper roller spindle can be adjusted by continuing to adjust the support seat 12 to ensure that one end of the upper roller spindle can be accurately aligned with the installation window of the straightening machine, achieving precise installation and avoiding damage to the equipment parts. The operator continues to push the replacement trolley 1 to move along the H-shaped guide rail 2 so that the upper roller spindle on the support member enters the straightening machine smoothly.

[0030] When the upper roller main shaft is installed on the trolley support seat 12, the upper straightening roller only contacts the trolley support seat 12, and the support seat 12 is insulated, so the electrical signal control circuit in the detection module 3 is not open, and the indicator light 32 does not light up at this time. During the installation process, only when the upper roller main shaft is installed in place and the upper roller main shaft bearing seat is fully in contact with the top pressing screw of the straightening machine, the current signal in the detection module 3 passes through the support, the replacement trolley 1, the H-shaped guide rail 2, the straightening machine arch, the top pressing screw of the straightening machine, the upper roller main shaft bearing seat, and the metal pad 31 to form a closed circuit. At this time, the indicator light 32 lights up, so as to accurately determine whether the upper straightening roller is installed in place.

[0031] The replacement trolley 1 includes a frame body 13, a support column 14, and wheels 15.

[0032] The support plate 11 is disposed above the frame body 13 and located on both sides of the frame body 13.

[0033] The frame body 13 has support columns 14 at both ends. There are two support columns 14 at the bottom of the frame body 13, and the two sets of support columns 14 are symmetrically fixed at the bottom of both ends of the frame body 13.

[0034] Two wheels 15 are rotatably mounted below the support column 14.

[0035] The wheel 15 is disposed in the slot of the H-shaped guide rail 2. The wheel slides within the H-shaped guide rail, and the sliding of the wheel within the H-shaped guide rail enables convenient movement of the trolley frame, facilitating the transportation and replacement of the upper roller spindle.

[0036] In this embodiment, the support includes two sets of support plates 11 and two sets of support seats 12. The two sets of support plates 11 are symmetrically fixed on both sides of the frame body 13, and the support seats 12 are located on one side of the support plates 11 and above the frame body 13.

[0037] The replacement trolley 1 also includes a baffle 16, which is disposed on the edge of the slot of the H-shaped guide rail 2 and located above the wheel 15.

[0038] The wheel 15 is made of wear-resistant material, specifically a roller made of wear-resistant metal. The support base 11 is made of insulating material, and the metal pad 31 is made of brass.

[0039] The support base 12 and the support plate 11 are connected by an adjusting screw 17. The adjusting screw 17 is threaded through the support plate 11. By rotating the adjusting screw 17, the position of the support base 12 can be adjusted to clamp and fix the upper roller spindle, adapting to upper roller spindles of different specifications. The adjusting screw 17 is set perpendicular to the support base 12, and the direction of the force of the adjusting screw 17 is completely perpendicular to the plane of the support base, which can accurately clamp the upper roller spindle and avoid the dispersion of clamping force or displacement of the upper roller spindle due to angular deviation.

[0040] The adjusting screw 17 is provided with a handwheel or wrench hole at the end away from the support base 12.

[0041] like Figure 6 As shown, a method for replacing the upper roller main shaft of a hot-rolled steel straightening machine, utilizing the upper roller main shaft replacement device for a hot-rolled steel straightening machine described in this embodiment, includes the following steps: When the upper roller spindle is installed on the support seat 12, the upper roller spindle is in contact with the support seat 12. Since the support seat 12 is insulated, the electrical signal control circuit in the detection module 3 is not open, and the indicator light 32 does not light up.

[0042] When the upper roller spindle is installed in place and the upper roller spindle bearing seat is fully in contact with the top pressing screw of the straightener, the current signal in the detection module 3 passes through the support plate 11, the body of the replacement trolley 1, the H-shaped guide rail 2, the straightener arch, the top pressing screw of the straightener, the upper roller spindle bearing seat, and the metal pad 31 to form a closed loop. At this time, the indicator light 32 lights up.

[0043] In this embodiment, the distance between the support base 12 and the support plate 11 is adjusted to accommodate upper roller spindles of different sizes.

Claims

1. A device for replacing an upper roll spindle of a hot-rolled steel shape straightening machine, for replacing an upper roll spindle of a hot-rolled steel shape straightening machine, the hot-rolled steel shape straightening machine comprising a straightening machine housing and an upper roll spindle, characterized in that: The replacement device includes replacing the trolley (1), the H-shaped guide rail (2), and the detection module (3); The H-shaped guide rail (2) is connected to the straightening machine frame. The H-shaped guide rail (2) is located directly below the upper roller main shaft. The length direction of the H-shaped guide rail (2) is parallel to the extension direction of the upper roller main shaft. The replacement trolley (1) is set inside the H-shaped guide rail (2); The replacement trolley (1) includes a support plate (11) and a support seat (12). The two support plates (11) are arranged in a V-shape, and a support seat (12) is arranged parallel above each support plate (11). The distance between the support seat (12) and the support plate (11) is adjustable. A detection module (3) is provided between the support plate (11) and the support base (12); The detection module (3) includes a metal pad (31) connected in series with wires, an indicator light (32), and a battery pack (33). The support base (12) is made of insulating material. The metal pad (31) is placed on the support base (12). The battery pack (33) is connected to the support plate (11) through wires. The support plate (11) is electrically connected to the H-shaped guide rail (2).

2. The upper roller spindle replacement device for a hot-rolled steel straightening machine according to claim 1, characterized in that: The replacement trolley (1) includes a frame body (13), a support column (14), and wheels (15). The support plate (11) is disposed above the frame body (13) and located on both sides of the frame body (13); The frame body (13) is provided with support columns (14) at both ends; Two wheels (15) are rotatably mounted below the support column (14); The wheel (15) is set in the slot of the H-shaped guide rail (2).

3. The upper roller spindle replacement device for a hot-rolled steel straightening machine according to claim 2, characterized in that: The replacement trolley (1) also includes a baffle (16), which is located at the edge of the slot of the H-shaped guide rail (2) and above the wheel (15).

4. The upper roller spindle replacement device for a hot-rolled steel straightening machine according to claim 2, characterized in that: The wheel (15) is made of wear-resistant material.

5. The upper roller spindle replacement device for a hot-rolled steel straightening machine according to claim 1, characterized in that: The support base (12) and the support plate (11) are connected by an adjusting screw (17).

6. The upper roller spindle replacement device for a hot-rolled steel straightening machine according to claim 5, characterized in that: The adjusting screw (17) has a handwheel or wrench hole at the end away from the support base (12).

7. A method for replacing the upper roller main shaft of a hot-rolled steel profile straightener, utilizing the upper roller main shaft replacement device for a hot-rolled steel profile straightener as described in any one of claims 1 to 6, characterized in that, Includes the following steps: When the upper roller spindle to be installed is mounted on the support seat (12), the upper roller spindle is in contact with the support seat (12). Since the support seat (12) is insulated, the electrical signal control circuit in the detection module (3) is not open, and the indicator light (32) does not light up. When the upper roller spindle is installed in place and the upper roller spindle bearing seat is fully in contact with the top pressing screw of the straightener, the current signal in the detection module (3) passes through the support plate (11), the body of the replacement trolley (1), the H-shaped guide rail (2), the straightener arch, the top pressing screw of the straightener, the upper roller spindle bearing seat, and the metal pad (31) to form a closed loop. At this time, the signal light (32) lights up.

8. The method for replacing the upper roller main shaft of a hot-rolled steel straightening machine according to claim 7, characterized in that: The distance between the support seat (12) and the support plate (11) can be adjusted to accommodate upper roller spindles of different sizes.

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