A quick replacement device for thrust bearing of a twenty-roller mill

Abstract

The utility model relates to a kind of twenty-roller mill thrust bearing quick replacement device, including cross bar and the through groove being opened in the front end surface of cross bar and along vertical direction, the left and right sides of the through groove are provided with the first sliding bar that is attached with the lateral wall of cross bar, limit slot is opened in the first sliding bar front end surface, limit block is arranged in the limit slot, support rod is arranged in the through groove, the both ends of support rod respectively pass through the two inner side walls of through groove and are coaxially fixed with limit block, rotating rod is arranged in the through groove, and the rotating rod is set on support rod, the through groove is provided with the positioning bolt sleeve and fixed bolt sleeve respectively coaxially fixed with the both ends of rotating rod.The utility model has the beneficial effects that staff can conveniently disassemble and assemble the fixed bolt and positioning bolt of fixed and positioned thrust bearing on ten-roller mill, so as to facilitate staff to replace damaged thrust bearing in ten-roller mill.

Description

Technical Field

[0001] This utility model relates to the field of disassembly equipment technology, specifically to a quick replacement device for the thrust bearing of a 20-roll mill. Background Technology

[0002] Stainless steel 20-roll mills are divided into integral archways and split archways. Integral archways have the advantages of compact structure, small space, and high precision. In an integral archway stainless steel 20-roll mill, the work rolls experience axial force at high speeds, which can cause collisions or even damage to the thrust bearings on the drive and operating sides.

[0003] When workers need to periodically replace or replace damaged parts on a 20-roll stainless steel rolling mill, the limited space and compact drive-side equipment make it difficult to perform replacements. Instead, they must remove the intermediate rolls and rolling oil spray beams, then enter the narrow frame to disassemble the fixing and positioning bolts of the thrust bearings on the 20-roll mill. However, this method not only poses safety hazards but also increases the labor intensity for workers and reduces production time. Furthermore, because the fixing and positioning bolts are of different types, workers must constantly change tools, making it inconvenient for them to replace damaged thrust bearings inside the 20-roll mill. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a quick thrust bearing replacement device for a 20-roll mill. This device allows workers to easily disassemble and assemble the fixing bolts and positioning bolts of the thrust bearing on a 10-roll mill, thereby facilitating the replacement of damaged thrust bearings within the 10-roll mill.

[0005] This utility model is achieved through the following technical solution: a quick replacement device for a thrust bearing of a 20-roll mill is provided, including a crossbar and a through groove formed on the front end face of the crossbar and extending vertically. First sliding rods that fit against the outer walls of the crossbar are provided on the left and right sides of the through groove. A limiting groove is formed on the front end face of the first sliding rod, and a limiting block is provided within the limiting groove. A support rod is provided within the through groove, with both ends of the support rod passing through the two inner walls of the through groove and coaxially fixed to the limiting block. A rotating rod is sleeved on the support rod within the through groove, and a positioning bolt sleeve and a fixing bolt sleeve are coaxially fixed to both ends of the rotating rod within the through groove.

[0006] In use, this invention features a crossbar and a vertically extending slot on the front end of the crossbar. First sliding rods, fitting against the outer walls of the crossbar, are located on either side of the slot. A limiting groove is formed on the front end of each sliding rod, containing a limiting block. A support rod is positioned within the slot, with both ends passing through the inner walls of the slot and coaxially fixed to the limiting blocks. A rotating rod is fitted onto the support rod within the slot. A positioning bolt sleeve and a fixing bolt sleeve, coaxially fixed to both ends of the rotating rod, are also located within the slot. During use, the first sliding rod is moved backward on the outer wall of the crossbar, causing the limiting groove to move backward with the first sliding rod. This disengages the limiting blocks from the limiting groove, and the first sliding rod no longer secures the limiting blocks. First, by controlling the rotation of the limiting block on the crossbar, the support rod rotates within the crossbar and the through groove. This causes the rotating rod to rotate with the support rod within the through groove, thereby moving the fixing bolt sleeve and the positioning bolt sleeve with the rotating rod. The fixing bolt sleeve then faces forward. Next, by controlling the first sliding rod to move forward on the outer wall of the crossbar, the limiting groove moves forward with the first sliding rod, causing the limiting block to re-enter the limiting groove and re-fix the limiting block with the first sliding rod. Then, simultaneously gripping the first sliding rod and the crossbar, and controlling the movement of the crossbar, the fixing bolt sleeve on the crossbar is inserted through the gap between the intermediate roll and the rolling oil spray beam into the ten-roll mill and rotated. This uses the fixing bolt sleeve to fix the thrust bearing. After the fixing bolts are removed, once the fixing bolt sleeve has removed all the fixing bolts securing the thrust bearing, the crossbar is moved by control, and the fixing bolt sleeve on the crossbar is taken out of the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam. Then, the first sliding rod is moved backward on the outer wall of the crossbar, causing the limiting groove to move backward with the first sliding rod, thereby causing the limiting block to disengage from the limiting groove. The first sliding rod no longer fixes the limiting block. Then, the limiting block is rotated on the crossbar, causing the support rod to rotate within the crossbar and the through groove, thereby causing the rotating rod to rotate within the through groove with the support rod. This causes the fixing bolt sleeve and the positioning bolt sleeve to move with the rotating rod, so that the positioning bolt sleeve faces forward. Then, the second... A sliding rod moves forward on the outer wall of the crossbar, causing the limiting groove to move forward with the first sliding rod. This allows the limiting block to re-enter the limiting groove, re-fixing the limiting block with the first sliding rod. Then, simultaneously gripping the first sliding rod and the crossbar, and controlling the movement of the crossbar, the positioning bolt sleeve on the crossbar is inserted into the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam and rotated. This removes the positioning bolt of the thrust bearing through the positioning bolt sleeve, thus freeing the thrust bearing from being fixed to the ten-roll mill. This facilitates the replacement of damaged thrust bearings within the ten-roll mill. Finally, by controlling the movement of the crossbar, the positioning bolt sleeve on the crossbar is removed from the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam.This design facilitates future use by staff, allowing for easier assembly and disassembly of the fixing and positioning bolts on the ten-roll mill's thrust bearings. This also makes it easier for staff to replace damaged thrust bearings within the ten-roll mill.

[0007] Preferably, a hand-held lever is fixedly connected to the rear end face of the crossbar. By fixing the hand-held lever to the rear end face of the crossbar, the operator can easily control the crossbar to move and rotate.

[0008] Preferably, the outer wall of the crossbar is provided with a sliding groove that runs through the left and right directions, and the rear end face of the hand handle is provided with a threaded rod that extends laterally through the hand handle and the crossbar into the sliding groove. The threaded rod is rotatably connected to the crossbar and the hand handle, and a second sliding rod is provided in the sliding groove, which is sleeved on the outer wall of the threaded rod and fixed to the rear ends of the two first sliding rods. A sliding groove running through the horizontal direction is provided on the outer wall of the crossbar. A threaded rod extending laterally through the hand handle and the crossbar into the sliding groove is provided on the rear end face of the hand handle. The threaded rod is rotatably connected to the crossbar and the hand handle. A second sliding rod is provided in the sliding groove, sleeved on the outer wall of the threaded rod and fixed to the rear ends of the two first sliding rods. When the device is in use, the threaded rod is controlled to rotate forward or backward in the hand handle, the crossbar and the second sliding rod. At this time, because the threaded rod is rotatably connected to the crossbar and the hand handle, and the second sliding rod is provided in the sliding groove, the second sliding rod will not rotate with the threaded rod. Instead, it will move forward or backward in the sliding groove under the rotation drive of the threaded rod, and drive the first sliding rod to move forward or backward on the outer wall of the crossbar.

[0009] Preferably, the sidewall of the limiting block facing the through groove abuts against the sidewall of the crossbar away from the through groove. By having the sidewall of the limiting block facing the through groove abut against the sidewall of the crossbar away from the through groove, the stability of the limiting block during use can be improved.

[0010] Preferably, the threaded rod is rotatably connected to the inner wall of the slide groove on the side away from the handle by the end facing the through groove. By rotatably connecting the threaded rod to the inner wall of the slide groove on the side away from the handle, the stability of the threaded rod during use can be improved.

[0011] Preferably, the cross-section of the limiting block is a regular hexagon. By setting the cross-section of the limiting block to a regular hexagon, it is easier for the limiting block to enter or exit the limiting groove, thereby facilitating the fixation or rotation of the limiting block by the operator.

[0012] The beneficial effects of this utility model are as follows: By setting a crossbar and a through groove opened on the front end face of the crossbar and extending vertically, first sliding rods that fit against the outer wall of the crossbar are set on the left and right sides of the through groove. A limiting groove is opened on the front end face of the first sliding rod, and a limiting block is set in the limiting groove. A support rod is set in the through groove, and the two ends of the support rod pass through the two inner side walls of the through groove and are coaxially fixed to the limiting block. A rotating rod is set in the through groove and sleeved on the support rod. A positioning bolt sleeve and a fixing bolt sleeve that are coaxially fixed to the two ends of the rotating rod are set in the through groove. When the device is in use, it is necessary to first control the first sliding rod to move backward on the outer wall of the crossbar, so that the limiting groove moves backward with the first sliding rod, thereby causing the limiting block to disengage from the limiting groove, and the first sliding rod no longer fixes the limiting block. First, by controlling the rotation of the limiting block on the crossbar, the support rod rotates within the crossbar and the through groove. This causes the rotating rod to rotate with the support rod within the through groove, thereby moving the fixing bolt sleeve and the positioning bolt sleeve with the rotating rod. The fixing bolt sleeve then faces forward. Next, by controlling the first sliding rod to move forward on the outer wall of the crossbar, the limiting groove moves forward with the first sliding rod, causing the limiting block to re-enter the limiting groove and re-fix the limiting block with the first sliding rod. Then, simultaneously gripping the first sliding rod and the crossbar, and controlling the movement of the crossbar, the fixing bolt sleeve on the crossbar is inserted through the gap between the intermediate roll and the rolling oil spray beam into the ten-roll mill and rotated. This uses the fixing bolt sleeve to fix the thrust bearing. After the fixing bolts are removed, once the fixing bolt sleeve has removed all the fixing bolts securing the thrust bearing, the crossbar is moved by control, and the fixing bolt sleeve on the crossbar is taken out of the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam. Then, the first sliding rod is moved backward on the outer wall of the crossbar, causing the limiting groove to move backward with the first sliding rod, thereby causing the limiting block to disengage from the limiting groove. The first sliding rod no longer fixes the limiting block. Then, the limiting block is rotated on the crossbar, causing the support rod to rotate within the crossbar and the through groove, thereby causing the rotating rod to rotate within the through groove with the support rod. This causes the fixing bolt sleeve and the positioning bolt sleeve to move with the rotating rod, so that the positioning bolt sleeve faces forward. Then, the second... A sliding rod moves forward on the outer wall of the crossbar, causing the limiting groove to move forward with the first sliding rod. This allows the limiting block to re-enter the limiting groove, re-fixing the limiting block with the first sliding rod. Then, simultaneously gripping the first sliding rod and the crossbar, and controlling the movement of the crossbar, the positioning bolt sleeve on the crossbar is inserted into the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam and rotated. This removes the positioning bolt of the thrust bearing through the positioning bolt sleeve, thus freeing the thrust bearing from being fixed to the ten-roll mill. This facilitates the replacement of damaged thrust bearings within the ten-roll mill. Finally, by controlling the movement of the crossbar, the positioning bolt sleeve on the crossbar is removed from the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam.This design facilitates future use by staff, allowing for easier assembly and disassembly of the fixing and positioning bolts on the ten-roll mill's thrust bearings. This also makes it easier for staff to replace damaged thrust bearings within the ten-roll mill. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a perspective view of the structure of this utility model; As shown in the figure: 1. Rotating rod, 2. Support rod, 3. Fixing bolt sleeve, 4. Positioning bolt sleeve, 5. Limiting block, 6. Through groove, 7. Crossbar, 8. First sliding rod, 9. Hand-held rod, 10. Threaded rod, 11. Second sliding rod, 12. Sliding groove, 13. Limiting groove. Detailed Implementation

[0014] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0015] like Figures 1-2 The present invention discloses a quick replacement device for a thrust bearing of a 20-roll mill, comprising a crossbar 7 and a through groove 6 extending vertically through the front end face of the crossbar 7. First sliding rods 8, which fit against the outer walls of the crossbar 7, are provided on the left and right sides of the through groove 6. A limiting groove 13 is provided on the front end face of the first sliding rod 8, and a limiting block 5 is provided within the limiting groove 13. A support rod 2 is provided within the through groove 6, with both ends of the support rod 2 passing through the two inner side walls of the through groove 6 and coaxially fixed to the limiting block 5. A rotating rod 1, sleeved on the support rod 2, is provided within the through groove 6. A positioning bolt sleeve 4 and a fixing bolt sleeve 3, coaxially fixed to both ends of the rotating rod 1, are also provided within the through groove 6.

[0016] By fixing a hand lever 9 to the rear end face of the crossbar 7, the staff can easily control the crossbar 7 to move and rotate. A sliding groove 12 extending in the left-right direction is provided on the outer wall of the crossbar 7. A threaded rod 10 extending laterally in the front-back direction through the hand handle 9 and the crossbar 7 into the sliding groove 12 is provided on the rear end face of the hand handle 9. The threaded rod 10 is rotatably connected to the crossbar 7 and the hand handle 9. A second sliding rod 11 is provided in the sliding groove 12, sleeved on the outer wall of the threaded rod 10 and fixed to the rear ends of the two first sliding rods 8. When the device is in use, the threaded rod 10 is controlled to rotate forward or backward in the hand handle 9, the crossbar 7 and the second sliding rod 11. At this time, because the threaded rod 10 is rotatably connected to the crossbar 7 and the hand handle 9, and the second sliding rod 11 is provided in the sliding groove 12, the second sliding rod 11 will not rotate with the threaded rod 10, but will move forward or backward in the sliding groove 12 under the rotation drive of the threaded rod 10, and drive the first sliding rods 8 to move forward or backward on the outer wall of the crossbar 7. By having the sidewall of the limiting block 5 facing the through groove 6 abut against the sidewall of the crossbar 7 away from the through groove 6, the stability of the limiting block 5 during use is improved. Similarly, by having the end of the threaded rod 10 facing the through groove 6 rotatably connected to the inner sidewall of the slide groove 12 away from the handgrip 9, the stability of the threaded rod 10 during use is improved. Furthermore, by setting the cross-section of the limiting block 5 to a regular hexagon, it is easier for the limiting block 5 to enter or exit the limiting groove 13, thus facilitating the fixation or rotation of the limiting block 5 by the operator.

[0017] Combined with appendix Figure 1-2The method of using this utility model is as follows: First, the threaded rod 10 needs to be controlled to rotate in opposite directions within the hand handle 9, the crossbar 7, and the second sliding rod 11. At this time, because the threaded rod 10 is rotatably connected to the crossbar 7 and the hand handle 9, and the second sliding rod 11 is set in the sliding groove 12, the second sliding rod 11 will not rotate with the threaded rod 10, but will move backward within the sliding groove 12 under the rotation drive of the threaded rod 10, and drive the first sliding rod 8 to move backward on the outer wall of the crossbar 7, so that the limiting groove 13 moves backward with the first sliding rod 8, thereby causing the limiting block 5 to disengage from the limiting groove 13. The first sliding rod 8 no longer fixes the limiting block 5. Then, by controlling the limiting block 5 to rotate on the crossbar 7, the support rod 2 is driven within the crossbar 7 and the through groove 6. The rotating rod 1 rotates along with the support rod 2 within the through groove 6, causing the fixing bolt sleeve 3 and the positioning bolt sleeve 4 to move with the rotating rod 1, thus positioning the fixing bolt sleeve 3 forward. Then, the threaded rod 10 is controlled to rotate forward within the hand handle 9, the crossbar 7, and the second sliding rod 11. Since the threaded rod 10 is rotatably connected to the crossbar 7 and the hand handle 9, and the second sliding rod 11 is located within the sliding groove 12, the second sliding rod 11 will not rotate with the threaded rod 10. Instead, it will move forward within the sliding groove 12 under the rotational drive of the threaded rod 10, causing the first sliding rod 8 to move forward on the outer wall of the crossbar 7. This causes the limiting groove 13 to move forward with the first sliding rod 8, thereby allowing the limiting block 5 to re-enter the limiting groove 1. Within 3, the first slide bar 8 is re-fixed to the limit block 5. Then, the hand lever 9 is controlled to move the crossbar 7, allowing the fixing bolt sleeve 3 on the crossbar 7 to be inserted into the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam and rotated. This allows the fixing bolts fixing the thrust bearing to be removed through the fixing bolt sleeve 3. After the fixing bolt sleeve 3 has removed all the fixing bolts fixing the thrust bearing, the hand lever 9 is controlled to move the crossbar 7, allowing the fixing bolt sleeve 3 on the crossbar 7 to be removed from the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam. Then, the threaded rod 10 is controlled to rotate in the opposite direction within the hand lever 9, the crossbar 7, and the second slide bar 11. At this time, because the threaded rod 10, the crossbar 7, and the hand lever 9... The second slide rod 11 is rotated and located within the slide groove 12. Therefore, the second slide rod 11 does not rotate with the threaded rod 10, but instead moves backward within the slide groove 12 under the rotational drive of the threaded rod 10. This causes the first slide rod 8 to move backward on the outer wall of the crossbar 7, resulting in the limiting groove 13 moving backward with the first slide rod 8. This allows the limiting block 5 to disengage from the limiting groove 13, and the first slide rod 8 no longer fixes the limiting block 5. Furthermore, by controlling the rotation of the limiting block 5 on the crossbar 7, the support rod 2 rotates within the crossbar 7 and the through groove 6. This causes the rotating rod 1 to rotate within the through groove 6 with the support rod 2, thereby causing the fixing bolt sleeve 3 and the positioning bolt sleeve 4 to move with the rotating rod 1, thus positioning the bolt sleeve 4 forward.Then, by controlling the threaded rod 10 to rotate forward within the hand handle 9, the crossbar 7, and the second slide rod 11, since the threaded rod 10 is rotatably connected to the crossbar 7 and the hand handle 9, and the second slide rod 11 is located within the slide groove 12, the second slide rod 11 will not rotate with the threaded rod 10. Instead, it will move forward within the slide groove 12 under the rotational drive of the threaded rod 10, and drive the first slide rod 8 to move forward on the outer wall of the crossbar 7. This causes the limiting groove 13 to move forward with the first slide rod 8, thereby allowing the limiting block 5 to re-enter the limiting groove 13, and the first slide rod 8 to re-fix the limiting block 5. Then, by controlling the hand lever 9 to move the crossbar 7, the positioning bolt sleeve 4 on the crossbar 7 is inserted into the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam and rotated. This allows the positioning bolt of the thrust bearing to be removed through the positioning bolt sleeve 4, thus freeing the thrust bearing from being fixed to the ten-roll mill. This facilitates the replacement of damaged thrust bearings within the ten-roll mill by the workers. Then, by controlling the movement of the crossbar 7, the positioning bolt sleeve 4 on the crossbar 7 is removed from the ten-roll mill through the gap between the intermediate roll and the rolling oil spray beam for future use.

[0018] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A quick-change device for thrust bearings in a 20-roll mill, characterized in that: The system includes a crossbar (7) and a through groove (6) that is opened on the front end face of the crossbar and runs vertically through it. The left and right sides of the through groove are provided with first sliding rods (8) that fit against the outer side wall of the crossbar. The front end face of the first sliding rod is provided with a limiting groove (13). A limiting block (5) is provided in the limiting groove. A support rod (2) is provided in the through groove. The two ends of the support rod pass through the two inner side walls of the through groove and are coaxially fixed to the limiting block. A rotating rod (1) is provided in the through groove and sleeved on the support rod. A positioning bolt sleeve (4) and a fixing bolt sleeve (3) are provided in the through groove and coaxially fixed to the two ends of the rotating rod, respectively.

2. The quick-change device for the thrust bearing of a 20-roll mill according to claim 1, characterized in that: A hand handle (9) is fixedly connected to the rear end face of the crossbar.

3. The quick-change device for the thrust bearing of a 20-roll mill according to claim 2, characterized in that: A sliding groove (12) is provided on the outer wall of the crossbar, which runs through the left and right directions. A threaded rod (10) is provided on the rear end face of the hand handle, which extends laterally through the hand handle and the crossbar to the sliding groove. The threaded rod is rotatably connected to the crossbar and the hand handle. A second sliding rod (11) is provided in the sliding groove, which is sleeved on the outer wall of the threaded rod and fixed to the rear end of the two first sliding rods.

4. The quick-change device for the thrust bearing of a 20-roll mill according to claim 1, characterized in that: The limiting block abuts against the side wall of the through groove on the side wall of the crossbar away from the through groove.

5. The quick-change device for the thrust bearing of a 20-roll mill according to claim 3, characterized in that: The threaded rod is rotatably connected to the inner wall of the slide groove on the side away from the handle at the end facing the through groove.

6. The quick-change device for the thrust bearing of a 20-roll mill according to claim 4, characterized in that: The cross-section of the limiting block is a regular hexagon.

Images