An off-line brush roll adjustment device and method

Abstract

The application discloses a kind of line outer brush roller adjusting device and method, by placing upper and lower work roll assembly in the placement groove of turnover frame body, then by driving device drive turnover frame body and work roll assembly rotation adjustment angle, make work roll press in the position of work roll bearing seat close to brush roller under the action of gravity, after by the hydraulic motor of brush roller drive brush roller, eliminate gap, do not need on-line mode to carry out brush roller adjustment, simple operation, shorten the adjustment time, improve work efficiency, greatly reduce the labor burden of staff.The application simulates the real state of work roll brush roller in working time by off-line mode.When the turnover cylinder is extended, the turnover frame body is horizontal, and at this time, the hoisting of the work roll device can be carried out.After hoisting is completed, the turnover cylinder is retracted, the work roll device is tilted by 20° on the turnover frame, and under the action of gravity, the work roll is completely attached to the bearing seat, and the bearing side gap is eliminated, so that the real working condition is simulated.

Description

Technical Field

[0001] This invention relates to the field of non-ferrous metal processing technology, specifically to an off-line brush roller adjustment device and method. Background Technology

[0002] In aluminum ingot rolling production, a cleaning roller is needed to clean aluminum powder from the surface of the work rolls in real time to prevent excessive accumulation of aluminum powder from affecting the rolling process. Each time the work rolls are changed, the cleaning roller needs to be disassembled, reassembled, and readjusted to achieve the appropriate roller pressure to meet production requirements.

[0003] However, during the disassembly of the work roll, radial clearance will exist in the work roll bearing (the maximum single-sided clearance can reach 0.6mm). This causes the work roll in the newly assembled work roll assembly to be in a free state within the bearing housing. In this state, the bearing clearance will cause uneven brush roll pressing (a 0.6mm radial clearance will result in a 9mm reduction in the brush roll pressing area). Adjusting the brush roll pressing under these conditions often results in a discrepancy with the actual production state, leading to inconsistent pressing on the operating side and the transmission side (i.e., the brush roll is not parallel to the work roll in operation).

[0004] Typically, online brush roll adjustment is not possible within the equipment. Existing brush roll adjustment involves pre-adjusting the work roll, then feeding it into the mill where a pressure cylinder presses it against the mill to eliminate all gaps (zeroing operation). During this zeroing process, the work roll is pressed against the bearing to eliminate gaps. Then, the work roll is pulled out, and the pressure on the brush roll is adjusted a second time. Only then is the pressure between the brush roll and the work roll uniform, achieving a clean, light brushing effect. This process is cumbersome, time-consuming, requires secondary adjustments, is labor-intensive, and inefficient. Therefore, we propose an off-line brush roll adjustment device and method. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide an off-line brush roller adjustment device and method that does not require brush roller adjustment on-line, is simple to operate, shortens the adjustment time, improves work efficiency, eliminates the need for secondary adjustment, greatly reduces the workload of workers, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an off-line brush roller adjustment device, comprising a fixed frame, one end of which is hinged to a flipping frame body via a rotary pin, the upper side of which is provided with an L-shaped placement groove for placing a working roller assembly, the end of which is away from the rotary pin and is hinged to a driving device, the driving device being able to drive the flipping frame body to rotate around the rotary pin; the working roller assembly includes a working roller bearing seat and a brush roller bearing seat mounted on the side surface of the working roller bearing seat, a working roller mounted on the working roller bearing seat, and a fixed frame further provided on the side surface of the working roller bearing seat, the fixed frame being provided with a clamping cylinder and a limiting nut for pressing the brush roller against the working roller.

[0007] As a preferred embodiment of the present invention, a steel liner is fixedly provided on the surface of the placement groove.

[0008] As a preferred embodiment of the present invention, the driving device includes a cylinder seat mounted on a fixed frame, a tilting cylinder hinged to the cylinder seat, a pusher fixedly mounted on the top of the movable end of the tilting cylinder, and the pusher hinged to the end of the tilting frame.

[0009] As a preferred embodiment of the present invention, a positioning pin is provided on the inner surface of the placement slot of the flipping frame.

[0010] As a preferred embodiment of the present invention, the side surface of the fixing frame is provided with a pressing cylinder bracket, and the upper surface of the pressing cylinder bracket is equipped with a brush roller bearing seat pressing cylinder.

[0011] As a preferred embodiment of the present invention, the fixing frame is fixedly connected to the ground foundation by anchor bolts.

[0012] As a preferred embodiment of the present invention, a leveling shim is provided between the fixing frame and the ground foundation.

[0013] The present invention also provides a method for adjusting an off-line brush roller, comprising the following steps:

[0014] S1: Hoist the work roller assembly into the placement slot of the tilting frame. The work roller assembly includes a work roller bearing housing, a work roller, a brush roller bearing housing, and a brush roller.

[0015] S2: The drive device drives the tilting frame to rotate around the rotary pin, so that the tilting frame is horizontal and the placement groove is tilted. The working roller assembly tilts accordingly, and the working roller presses against the working roller bearing seat under the action of gravity to eliminate the bearing clearance.

[0016] S3: Connects external oil pipes, including oil pipes for clamping cylinders and hydraulic motors;

[0017] S4: Place the test paper between the brush roller and the working roller, operate the clamping cylinder to clamp the brush roller, and adjust the limit nut to make the width of the indentation on the test paper within the range of 25~30mm;

[0018] S5: The hydraulic motor that drives the brush roller eliminates the gap and then measures the indentation width again to ensure it is within the range of 25~30mm;

[0019] S6: Tighten the limit nut and lift the clamping cylinder;

[0020] S7: The drive device rotates the tilting frame back to the horizontal position to complete the brush roller adjustment.

[0021] As a preferred embodiment of the present invention, the adjustment of the lower working roller assembly includes, before step S1, a step of placing a positioning pad on the steel liner of the placement groove.

[0022] As a preferred technical solution of the present invention, for the finishing mill work roll assembly, in step S1, the brush roll bearing seat is pressed against the oil cylinder to apply pressure to the brush roll bearing seat to press the brush roll.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: by placing the upper and lower working roller assemblies in the placement slot of the flipping frame, and then driving the flipping frame and working roller assemblies to rotate and adjust the angle through the drive device, the working roller is pressed against the working roller bearing seat near the brush roller under the action of gravity. Then, the brush roller is driven by the hydraulic motor of the brush roller to eliminate the gap. After the measurement is correct, the limit nut is locked and the flipping frame and upper and lower working roller assemblies are rotated in the opposite direction by the drive device to lift it up. The brush roller adjustment can be completed off-line, without the need for brush roller adjustment on-line. The operation is simple, the adjustment time is shortened, the work efficiency is improved, and the need for secondary adjustment is eliminated, which greatly reduces the workload of the staff. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention when adjusting the brush roller;

[0025] Figure 2 This is a schematic diagram of the structure of the present invention during the hoisting of the working roller and brush roller;

[0026] Figure 3 This is a schematic diagram of the structure for adjusting the work roll on the roughing roll of the present invention;

[0027] Figure 4 This is a schematic diagram of the structure for adjusting the lower working roll of the coarse roller according to the present invention;

[0028] Figure 5 This is a top view of the working roller and brush roller of the present invention.

[0029] In the diagram: 1. Fixed frame, 2. Tilting frame, 3. Tilting cylinder, 4. Rotary pin, 5. Cylinder seat, 6. Steel liner, 7. Push head, 8. Working roller bearing seat, 9. Working roller, 10. Brush roller bearing seat, 11. Brush roller, 12. Pressing cylinder, 13. Limit nut, 14. Pressing cylinder bracket, 15. Brush roller bearing seat pressing cylinder, 16. Positioning pin. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-5 This invention provides a technical solution: an off-line brush roller adjustment device, including a fixed frame 1. One end of the fixed frame 1 is hinged to a flipping frame 2 via a rotary pin 4. The upper side of the flipping frame 2 is provided with an L-shaped placement groove for placing a work roller assembly. The end of the flipping frame 2 away from the rotary pin 4 is hinged to a driving device, which can drive the flipping frame 2 to rotate around the rotary pin 4. By placing upper and lower work roller assemblies in the placement groove of the flipping frame 2, and then driving the flipping frame 2 and the work roller assembly to rotate via the driving device, the angle can be adjusted.

[0032] The driving device includes a cylinder seat 5 mounted on a fixed frame 1. A tilting cylinder 3 is hinged to the cylinder seat 5. A pusher 7 is fixedly mounted on the top of the movable end of the tilting cylinder 3. The pusher 7 is hinged to the end of the tilting frame 2. The tilting cylinder 3 can push the tilting frame 2 up and down by 20° through the pusher 7, rotating the placement trough and the upper and lower working roller assemblies to a horizontal hoisting position and an inclined adjustment position.

[0033] The working roller assembly includes a working roller bearing housing 8 and a brush roller bearing housing 10 mounted on the side surface of the working roller bearing housing 8. A working roller 9 is mounted on the working roller bearing housing 8, and a brush roller 11 is mounted on the brush roller bearing housing 10. A fixing frame is also provided on the side surface of the working roller bearing housing 8. A clamping cylinder 12 and a limit nut 13 are respectively provided on the fixing frame for pressing the brush roller 11 against the working roller 9.

[0034] When the tilting cylinder 3 pushes the tilting frame 2 to rotate to a horizontal position and the placement trough is tilted, the working roller 9 presses against the working roller bearing seat 8 near the brush roller 11 under the action of gravity. Then, the brush roller 11 is driven by the hydraulic motor of the brush roller 11 to eliminate the gap. After the measurement is correct, the limit nut 13 is locked and the tilting frame 2 and the upper and lower working roller assemblies are lifted by the reverse rotation of the drive device. The brush roller adjustment can be completed off-line. There is no need to adjust the brush roller on-line. The operation is simple, the adjustment time is shortened, the work efficiency is improved, and the secondary adjustment is not required, which greatly reduces the labor burden of the staff.

[0035] In a preferred embodiment, a steel liner 6 is fixedly provided on the surface of the placement groove to protect the surface of the placement groove and extend the service life of the device.

[0036] In a preferred embodiment, a leveling shim is provided between the fixing frame 1 and the ground foundation, and the fixing frame 1 is fixedly connected to the ground foundation by anchor bolts to prevent the equipment from shifting during use.

[0037] In the preferred embodiment, the tilting frame 2 is a welded structure with sufficient rigidity.

[0038] For adjustments to the upper work roll assembly, please refer to [link / reference]. Figure 3 :

[0039] (1) Drive the tilting cylinder 3 to extend. After it extends, adjust the tilting frame 2 to be tilted and the placement slot to be horizontal. Hoist the work roll of the roughing mill into the placement slot of the tilting frame 2. Then operate the button to retract the tilting cylinder 3 to the position shown in the figure. The tilting frame 2 is horizontal and the placement slot and work roll assembly are tilted. At this time, the upper liner of the upper work roll bearing seat is tightly attached to the steel liner 6.

[0040] (2) After the upper working roller bearing seat is close to the entire tilting frame 2, the working roller 9 presses against the lower left of the working roller bearing seat 8 under the action of gravity. At this time, connect the external quick-connect oil pipe (operating side and transmission side clamping cylinder, traverse cylinder, hydraulic motor, etc.), put a piece of white paper between the brush roller 11 and the working roller 9, so that the clamping cylinder 12 is clamped. Observe and adjust the limit nut 13 so that the width overlap of the white paper indentation is 25~30mm. Drive the hydraulic motor of the brush roller to eliminate the gap, and then measure the overlap again to be 25~30mm. After the measurement is correct, lock the limit nut 13 and lift the clamping cylinder 12. At this time, the brush roller adjustment is completed.

[0041] (3) Operate the corresponding control button to extend the tilting cylinder 3 and lift the tilting frame 2 so that the working roll assembly reaches the horizontal (hoisting) position; after the upper working roll device and the lower working roll device are adjusted, they are assembled and put into the rolling mill for production, and the cleaning effect is observed.

[0042] For adjustments to the lower work roll assembly, please refer to [link / reference]. Figure 4 :

[0043] (1) Extend the tilting cylinder, and after extending it, adjust the tilting frame 2 to be tilted and the placement slot to be horizontal. Place the roughing mill positioning pad (5mm thick) on the steel liner 6 on the operating side of the tilting frame 2, and then hoist the roughing mill lower working roll device onto the placement slot. Then operate the corresponding button to retract the tilting cylinder 3 to reach the position shown in the figure. The tilting frame 2 is horizontal, and the placement slot and working roll assembly are tilted. At this time, the lower working roll bearing seat and the positioning pin are pressed together without gap.

[0044] (2) After the lower working roller bearing seat is close to the tilting frame 2, the working roller 9 presses against the lower left of the working roller bearing seat 8 under the action of gravity. At this time, connect the quick-connect oil pipe (operating side and transmission side clamping cylinder, traverse cylinder, hydraulic motor), put a piece of white paper between the brush roller 11 and the working roller 9, so that the clamping cylinder 12 is clamped. Observe and adjust the limit nut 13 so that the width overlap of the white paper indentation is 25~30mm. Drive the hydraulic motor of the brush roller 13 to eliminate the gap, and then measure the overlap again to be 25~30mm. After the measurement is correct, lock the limit nut 13 and lift the clamping cylinder 12. At this time, the adjustment of the brush roller 11 is completed.

[0045] (3) The operation button extends the tilting cylinder 3 and lifts the tilting frame 2, so that the working roll device reaches the horizontal (hoisting) position; after the upper working roll device and the lower working roll device are adjusted, they are assembled and put into the rolling mill for production, and the cleaning effect is observed.

[0046] The following is an example of finish rolling. The finish rolling process is largely the same as the rough rolling process, with the following differences:

[0047] The inner surface of the placement slot of the flipping frame 2 is provided with a positioning pin 16 to avoid the wheels of the lower work roll of the finishing mill.

[0048] In a preferred embodiment, a pressing cylinder bracket 14 is provided on the side surface of the fixing frame 1, and a brush roller bearing seat pressing cylinder 15 is installed on the upper surface of the pressing cylinder bracket 14. In the finishing mill, the brush roller pressing device (such as the pressing cylinder 12) is not directly installed on the work roll assembly, and external force is required to press the brush roller bearing seat. Therefore, an external brush roller bearing seat pressing cylinder 15 is provided to apply pressure to the brush roller so that it can press the work roll.

[0049] The pressing cylinder 12, brush roller bearing seat pressing cylinder 15, tilting cylinder 3, operating side and transmission side pressing cylinder, pulsating cylinder, hydraulic motor and other components used in this application are all commonly used electronic components in the prior art. Their specific structure, working principle, control method and circuit connection are all known technologies and will not be described in detail here.

[0050] The present invention also provides a method for adjusting an off-line brush roller, comprising the following steps:

[0051] S1: The working roller assembly is hoisted into the placement slot of the tilting frame 2. The working roller assembly includes a working roller bearing seat 8, a working roller 9, a brush roller bearing seat 10, and a brush roller 11.

[0052] S2: The drive device drives the tilting frame 2 to rotate around the rotary pin 4, so that the tilting frame 2 is horizontal and the placement groove is tilted. The working roller assembly tilts accordingly, and the working roller 9 presses against the working roller bearing seat 8 under the action of gravity to eliminate the bearing clearance.

[0053] S3: Connects external oil pipes, including the oil pipes for clamping cylinder 12 and hydraulic motor;

[0054] S4: Place the test paper between the brush roller 11 and the working roller 9, operate the clamping cylinder 12 to clamp the brush roller 11, and adjust the limit nut 13 so that the width of the indentation on the test paper is within the range of 25~30mm.

[0055] S5: Drive the hydraulic motor of brush roller 11, eliminate the gap, and measure the indentation width again to ensure it is within the range of 25~30mm;

[0056] S6: Tighten the limit nut 13 and lift the clamping cylinder 12;

[0057] S7: The drive device drives the tilting frame 2 back to the horizontal position to complete the brush roller adjustment.

[0058] This invention simulates the actual working state of the working roller brush roller online. When the tilting cylinder extends, the tilting frame is horizontal, allowing the working roller assembly to be hoisted. After hoisting, the tilting cylinder retracts, and the working roller assembly tilts 20° on the tilting frame. Under the action of gravity, the working roller is completely pressed against the bearing seat, eliminating bearing clearance and simulating real working conditions.

[0059] All parts not disclosed in this invention are prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for adjusting an off-line brush roller, characterized in that, An off-line brush roller adjustment device is adopted, which includes a fixed frame (1). One end of the fixed frame (1) is hinged to a flipping frame (2) via a rotary pin (4). An L-shaped placement groove for placing the work roller assembly is provided on the upper side of the flipping frame (2). A steel liner (6) is fixedly provided on the surface of the placement groove. The end of the flipping frame (2) away from the rotary pin (4) is hinged to a drive device. The drive device can drive the flipping frame (2) to rotate around the rotary pin (4). The work roller assembly includes a work roller bearing seat (8) and a bearing mounted on the work roller. The brush roller bearing seat (10) is located on the side surface of the bearing seat (8). A working roller (9) is installed on the working roller bearing seat (8). A brush roller (11) is installed on the brush roller bearing seat (10). A fixing frame is also provided on the side surface of the working roller bearing seat (8). A pressing cylinder (12) and a limiting nut (13) are respectively provided on the fixing frame for pressing the brush roller (11) against the working roller (9). A pressing cylinder bracket (14) is provided on the side surface of the fixing frame (1). A brush roller bearing seat pressing cylinder (15) is installed on the upper surface of the pressing cylinder bracket (14). Includes the following steps: S1: The working roller assembly is hoisted into the placement slot of the tilting frame (2). The working roller assembly includes a working roller bearing seat (8), a working roller (9), a brush roller bearing seat (10), and a brush roller (11). S2: The drive device drives the tilting frame (2) to rotate around the rotary pin (4), so that the tilting frame (2) is horizontal and the placement groove is tilted. The working roller assembly tilts accordingly, and the working roller (9) presses against the working roller bearing seat (8) under the action of gravity to eliminate the bearing clearance. S3: Connecting external oil pipes, including the oil pipes for clamping cylinder (12) and hydraulic motor; S4: Place the test paper between the brush roller (11) and the working roller (9), operate the clamping cylinder (12) to clamp the brush roller (11), and adjust the limit nut (13) so that the width of the indentation on the test paper is within the range of 25~30mm; S5: Drive the hydraulic motor of the brush roller (11), eliminate the gap, and measure the indentation width again to ensure it is within the range of 25~30mm; S6: Tighten the limit nut (13) and lift the clamping cylinder (12); S7: Drive the flipping frame (2) back to the horizontal position through the drive device to complete the brush roller adjustment.

2. The method for adjusting an off-line brush roller according to claim 1, characterized in that: Before step S1, the adjustment of the lower working roll assembly includes the step of placing a positioning pad on the steel liner (6) of the placement groove.

3. The method for adjusting an off-line brush roller according to claim 1, characterized in that: For the finishing mill work roll assembly, in step S4, pressure is applied to the brush roll bearing seat (10) by the brush roll bearing seat pressing cylinder (15) to press the brush roll (11).

4. The method for adjusting an off-line brush roller according to claim 1, characterized in that: The driving device includes a cylinder seat (5) mounted on a fixed frame (1), a tilting cylinder (3) mounted on the cylinder seat (5), a pusher (7) fixedly mounted on the top of the movable end of the tilting cylinder (3), and the pusher (7) is hinged to the end of the tilting frame (2).

5. The method for adjusting an off-line brush roller according to claim 1, characterized in that: The inner surface of the placement slot of the flipping frame (2) is provided with a positioning pin (16).

6. The method for adjusting an off-line brush roller according to claim 1, characterized in that: The fixed frame (1) is fixedly connected to the ground foundation by anchor bolts.

7. The method for adjusting an off-line brush roller according to claim 6, characterized in that: A leveling pad is provided between the fixing frame (1) and the ground foundation.

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