Quick replacing device for bearing seat

Abstract

The utility model relates to the technical field of rolling mill equipment, in particular to a quick replacement device for a bearing seat. Comprising a first fixing seat for placing a working roll and platforms arranged on two sides of the first fixing seat, a plurality of first guide rails are arranged on the platforms, a second fixing seat is slidably arranged on the first guide rails, a plurality of second guide rails are arranged on the second fixing seat, a third fixing seat is slidably arranged on the second guide rails, and a mounting seat is arranged above the third fixing seat. And a power mechanism is arranged on the surface of the third fixing seat and drives the mounting seat to move up and down. Transverse movement of the second fixing base is achieved through the first guide rail arranged on the platform, then the second guide rail is in sliding connection with the third fixing base to achieve longitudinal movement of the third fixing base, and the power mechanism drives the mounting base above the third fixing base to move up and down to achieve disassembly and assembly of the working roller bearing base. The assembly precision of the bearing seat and the working roll can be guaranteed, and the service life of the working roll and the bearing seat is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rolling mill equipment, in particular to a rapid bearing housing replacement device. Background Art

[0002] The work roll is an important part of a rolling mill and is a key factor in ensuring the surface quality of the rolled sheet or strip. During the production of sheets or strips, to ensure the surface quality of the sheet, when the surface of the work roll is worn, damaged, has color differences, or when batch-changing production specifications cannot guarantee the surface quality of the sheet, the replacement of the work roll becomes one of the auxiliary tasks that need to be carried out every day on the rolling mill, so as to ensure the smooth progress of subsequent production.

[0003] Therefore, during the production of sheets or strips, to ensure the roll-changing efficiency, several spare work rolls equipped with bearing housings must be kept in reserve at all times. This makes the replacement of the work roll bearing housing a daily task for the rolling mill maintenance. Currently, most of the replacement work of bearing housings is carried out by hoisting with a crane. However, the assembly accuracy of the bearing box is relatively high, the crane operation is complex, and manual operation cannot guarantee the accuracy. Sometimes, there will be collisions, which affect the bearing accuracy and reduce the service life of the work roll and the bearing box. Summary of the Invention

[0004] To solve the problem that the replacement of the existing work roll bearing housing is mostly completed by hoisting with a crane, and the crane operation is complex and manual operation cannot guarantee the accuracy, resulting in collisions, affecting the bearing accuracy, and reducing the service life of the work roll and the bearing box, the utility model proposes a rapid bearing housing replacement device. The transverse movement of the second fixed seat is realized through the first guide rail arranged on the platform, and then the longitudinal movement of the third fixed seat is realized by the sliding connection between the second guide rail arranged on the second fixed seat and the third fixed seat. Then, the power mechanism drives the mounting seat above the third fixed seat to move up and down to realize the disassembly and assembly of the work roll bearing housing, which can ensure the assembly accuracy of the bearing housing and improve the service life of the work roll and the bearing housing.

[0005] To achieve the above object, the technical solution of the utility model is: a rapid bearing housing replacement device, including a first fixed seat for placing the work roll and platforms arranged on both sides of the first fixed seat. A plurality of horizontally arranged first guide rails are provided on the platforms. A second fixed seat is slidably arranged on the first guide rails. A plurality of second guide rails perpendicular to the first guide rails are provided on the second fixed seat. A third fixed seat is slidably arranged on the second guide rails. A mounting seat is arranged above the third fixed seat for placing the bearing housing. A power mechanism is provided on the upper surface of the third fixed seat, and the power mechanism drives the mounting seat to move up and down. The work roll is vertically arranged on the first fixed seat, and the horizontally arranged first guide rail is perpendicular to the placement direction of the work roll.

[0006] Further, a first pulley cooperating with the first guide rail is provided on the lower side of the second fixed seat to enable the lateral movement of the second fixed seat on the first guide rail. A second pulley cooperating with the second guide rail is provided on the lower side of the third fixed seat to enable the longitudinal movement of the third fixed seat on the second guide rail. The two first guide rails are symmetrically arranged on the platform, and the four first pulleys provided on the lower side of the second fixed seat cooperate with the first guide rail to realize the lateral movement of the second fixed seat on the platform. The two second guide rails are symmetrically arranged on the upper surface of the second fixed seat, and the four second pulleys provided on the lower side of the third fixed seat cooperate with the second guide rail to realize the longitudinal movement of the third fixed seat on the second fixed seat.

[0007] Further, the power mechanism includes a turbine and a worm. The turbine is in transmission connection with the worm. A vertical screw rod is threadedly connected in the turbine. One end of the screw rod passes through the third fixed seat and is slidably connected to the third fixed seat, and the other end is fixed to the lower side of the mounting seat. An integrally formed outer shell is provided outside the turbine and the worm. The outer shell is fixedly connected to the third fixed seat. The turbine and the worm can rotate inside the outer shell, so as to realize that when the worm rotates, it drives the turbine to rotate. When the turbine rotates, the screw rod threadedly connected in the middle thereof moves up and down.

[0008] Further, a plurality of stabilizing columns are fixed to the bottom of the mounting seat. The other ends of the stabilizing columns pass through the third fixed seat and are slidably connected to the third fixed seat. Ensure the stability of the mounting seat during the up and down movement and avoid accidents when replacing the bearing seat.

[0009] Further, a handle is fixed to the end of the worm away from the first fixed seat. The cross section of the handle is in a shape similar to a stepped shape. One end of the handle passes through the outer shell and is fixed to the worm, which is convenient for manually rotating the worm.

[0010] Further, a plurality of limiting mechanisms are provided on both sides of the platform. The limiting mechanisms are used to limit the up and down movement distance of the mounting seat. The limiting mechanism includes two symmetrically arranged "U"-shaped limiting plates. The openings of the "U"-shaped limiting plates are arranged opposite to each other. Each limiting plate is located below each working roll. The space between the two limiting plates is used to accommodate the mounting seat. During the up and down movement of the mounting seat, the mounting seat should be located between the two oppositely arranged limiting plates, which can accurately position the lateral position of the mounting seat, ensure the installation accuracy of the bearing seat, and improve the efficiency.

[0011] Further, the platform is hollowly arranged and has an upper opening, and a sieve plate is installed at the opening. When replacing the bearing seat on the working roll. There will inevitably be rolling oil inside the bearing seat. This rolling oil will flow into the internally hollow platform as the mounting seat moves.

[0012] Further, the sieve plate includes a plurality of horizontally arranged plates and vertically arranged plates that are uniformly arranged. The plurality of horizontally arranged plates and vertically arranged plates are fixedly connected to form a grid shape.

[0013] Through the above technical solutions, the beneficial effects of the present utility model are as follows:

[0014] 1. The present utility model realizes the lateral movement of the second fixed seat through the first guide rail provided on the platform, and then the second guide rail provided on the second fixed seat is slidably connected to the third fixed seat to realize the longitudinal movement of the third fixed seat. Then, the power mechanism drives the mounting seat above the third fixed seat to move up and down to disassemble and assemble the work roll bearing seat, which can ensure the assembly accuracy of the bearing seat and improve the service life of the work roll and the bearing seat.

[0015] 2. The present utility model realizes the movement of the device through a pure mechanical structure, and the structure is simple and easy to operate.

[0016] 3. The present utility model is provided with a plurality of limiting mechanisms on both sides of the first fixed seat, and the limiting mechanisms can play an auxiliary positioning function during the replacement process of the bearing seat to ensure the assembly accuracy of the bearing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a rapid bearing seat replacement device of the present utility model;

[0018] Figure 2 is an enlarged structural view of part A of a rapid bearing seat replacement device of the present utility model;

[0019] Figure 3 is a partial front view of a rapid bearing seat replacement device of the present utility model;

[0020] Figure 4 is a partial side view of a rapid bearing seat replacement device of the present utility model;

[0021] Figure 5 is a schematic structural diagram of the power mechanism of a rapid bearing seat replacement device of the present utility model.

[0022] The reference numerals in the drawings are: 1 is the work roll, 2 is the first fixed seat, 3 is the platform, 4 is the first guide rail, 5 is the second fixed seat, 6 is the second guide rail, 7 is the third fixed seat, 8 is the mounting seat, 9 is the bearing seat, 10 is the turbine, 11 is the worm, 12 is the screw, 13 is the stabilizing column, 14 is the handle, 15 is the limiting plate, and 16 is the sieve plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0024] Such as Figures 1 to 5As shown in the figure, this embodiment provides a device for quickly replacing a bearing housing, which includes a first fixed seat 2 for placing a working roll 1 and platforms 3 arranged on both sides of the first fixed seat 2. A plurality of first guide rails 4 arranged horizontally are provided on the platforms 3. A second fixed seat 5 is slidably arranged on the first guide rails 4. A plurality of second guide rails 6 perpendicular to the first guide rails 4 are provided on the second fixed seat 5. A third fixed seat 7 is slidably arranged on the second guide rails 6. An installation seat 8 is arranged above the third fixed seat 7. The installation seat 8 is used for placing a bearing housing 9. A power mechanism is arranged on the upper surface of the third fixed seat 7, and the power mechanism drives the installation seat 8 to move up and down.

[0025] Specifically, as Figure 1 and Figure 2 shown in the figure, a first pulley cooperating with the first guide rail 4 is fixed below the second fixed seat 5 to realize the lateral movement of the second fixed seat 5 on the first guide rail 4. A second pulley cooperating with the second guide rail 6 is fixed below the third fixed seat 7 to realize the longitudinal movement of the third fixed seat 7 on the second guide rail 6. In this embodiment, both the first guide rail 4 and the second guide rail 6 are two. Two first pulleys cooperating with the first guide rail 4 are provided on both sides below the second fixed seat 5 to realize the lateral movement of the second fixed seat 5 on the first guide rail 4. Two second pulleys cooperating with the second guide rail 6 are provided on both sides below the third fixed seat 7 to realize the longitudinal movement of the third fixed seat 7 on the second guide rail 6.

[0026] Specifically, the power mechanism includes a turbine 10 and a worm 11. The turbine 10 is in transmission connection with the worm 11. A vertical screw rod 12 is threadedly connected in the turbine 10. One end of the screw rod 12 passes through the third fixed seat 7 and is slidably connected to the third fixed seat 7, and the other end is fixed to the lower side of the installation seat 8. In this embodiment, the power mechanism adopts the transmission structure of the turbine 10 and the worm 11. In another implementable manner, the power mechanism can also adopt an oil cylinder or a cylinder.

[0027] In this embodiment, an integrally formed outer shell is provided outside the turbine 10 and the worm 11. The outer shell is fixedly connected to the third fixed seat 7. The turbine 10 and the worm 11 can rotate inside the outer shell. A handle 14 is fixed to one end of the worm 11 away from the first fixed seat 2. The handle 14 passes through the outer shell and is rotatably connected to the outer shell. Manually rotating the handle 14 drives the worm 11 to rotate, and the turbine 10 in transmission connection with the worm 11 rotates, thereby driving the screw rod 12 threadedly connected in the middle of the turbine 10 to move up and down. In this embodiment, the handle 14 is in a shape similar to a stepped shape.

[0028] Specifically, a plurality of stabilizing columns 13 are fixed to the bottom of the mounting base 8. The other ends of the stabilizing columns 13 pass through the third fixing base 7 and are slidably connected to the third fixing base 7. In this embodiment, there are 4 stabilizing columns 13 which are respectively arranged at the four corners of the lower side of the mounting base 8. When the screw rod 12 drives the mounting base 8 to move up and down, relative sliding occurs between the stabilizing columns 13 and the third fixing base 7.

[0029] As an implementable manner, a plurality of limiting mechanisms are provided on both sides of the platform 3. The limiting mechanisms are used to limit the up and down movement distance of the mounting base 8. The limiting mechanism includes two symmetrically arranged "U"-shaped limiting plates 15. The openings of the "U"-shaped limiting plates 15 are arranged oppositely. Each limiting plate 15 is located below each working roll 1. The space between the two limiting plates 15 is used to accommodate the mounting base 8. As Figure 2 shown in Figure 3 this embodiment, the distance between the two limiting plates 15 is just enough to accommodate the mounting base 8, avoiding the re-sliding of the mounting base 8 and improving the assembly accuracy of the bearing seat 9. In this embodiment, the distance range between the upper and lower parts of the "U"-shaped limiting plate 15 is 2 - 10 cm, such as 2 cm, 5 cm, 8 cm, 10 cm.

[0030] As an implementable manner, the platform 3 is provided with a hollow interior and an upper opening. A sieve plate 16 is installed at the opening. The sieve plate 16 includes a plurality of horizontally arranged plates and vertically arranged plates which are evenly arranged. The plurality of horizontally arranged plates and vertically arranged plates are fixedly connected to form a grid shape.

[0031] When the bearing seat 9 on the working roll 1 needs to be replaced, first, the bearing seat 9 on the working roll 1 needs to be removed, and then the bearing seat 9 needs to be installed on an unused working roll 1;

[0032] The work process of removing the bearing seat 9 on the working roll 1 is as follows: First, manually move the second fixing base 2 to one side of the working roll 1 where the bearing seat 9 needs to be removed through the first pulley. Manually push the third fixing base 7. The second pulley arranged on the lower side of the third fixing base 7 cooperates with the second guide rail 6 to push the mounting base 8 into the two limiting plates 15 below the working roll 1. At this time, manually rotate the handle 14 to realize the up and down movement of the screw rod 12, and then drive the mounting base 8 to move up and down in the limiting plates 15. When it rises to be close to the bearing seat 9 on the working roll 1, the bearing seat 9 can be manually removed.

[0033] The workflow for installing the bearing block 9 onto the unused working roll 1 is as follows: After removing the bearing block 9, manually push the mounting seat 8. At this time, the second pulley provided on the lower side of the third fixed seat 7 moves on the second guide rail 6, pushing the mounting seat 8 away from the two limit plates 15. Then, manually move the second fixed seat 2 to one side of the unused working roll 1 through the first pulley. At this time, manually push the mounting seat 8 again and push it into the two limit plates 15 below the working roll 1. Manually rotate the handle 14 to lift the bearing block 9 to a proper position. Then, push the mounting seat 8 again to enable the end of the working roll 1 to enter the bearing block 9. At this time, finely adjust the height of the mounting seat 8 again to reduce the assembly difficulty between the bearing block 9 and the working roll 1, and then the bearing block 9 can be installed at the end of the unused working roll 1.

[0034] The above-described embodiments are only the preferred embodiments of the present invention and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent should be included within the scope of the present invention's patent application.

Claims

1. A bearing seat quick replacement device, comprising a first fixed seat (2) for placing a working roll (1) and platforms (3) arranged on both sides of the first fixed seat (2), characterized in that: The platform (3) is provided with a plurality of first guide rails (4) arranged transversely, a second fixed seat (5) is slidably arranged on the first guide rail (4), a plurality of second guide rails (6) perpendicular to the first guide rail (4) are arranged on the second fixed seat (5), a third fixed seat (7) is slidably arranged on the second guide rail (6), a mounting seat (8) is arranged above the third fixed seat (7), the mounting seat (8) is used to place a bearing seat (9), and a power mechanism is arranged on the upper surface of the third fixed seat (7), the power mechanism drives the mounting seat (8) to move up and down.

2. A bearing seat quick replacement device according to claim 1, characterized in that: A first pulley cooperating with the first guide rail (4) is provided on the lower side of the second fixed seat (5) to realize lateral movement of the second fixed seat (5) on the first guide rail (4), and a second pulley cooperating with the second guide rail (6) is provided on the lower side of the third fixed seat (7) to realize longitudinal movement of the third fixed seat (7) on the second guide rail (6).

3. A bearing seat quick replacement device according to claim 1, characterized in that: The power mechanism comprises a turbine (10) and a worm (11), the turbine (10) being drivingly connected to the worm (11), a vertical screw (12) being threadedly connected to the turbine (10), one end of the screw (12) passing through the third fixing seat (7) and being slidably connected to the third fixing seat (7), and the other end being fixed to the lower side of the mounting seat (8).

4. A bearing seat quick replacement device according to claim 1, characterized in that: A plurality of stabilizing columns (13) are fixed to the bottom of the mounting seat (8), and the other end of the stabilizing column (13) passes through the third fixing seat (7) and is slidably connected to the third fixing seat (7).

5. A bearing seat quick replacement device according to claim 3, characterized in that: A handle (14) is fixed to one end of the worm (11) away from the first fixing seat (2).

6. A bearing seat quick replacement device according to claim 1, characterized in that: A plurality of limiting mechanisms are provided on both sides of the platform (3), the limiting mechanisms being used to limit the up and down movement distance of the mounting seat (8), the limiting mechanisms comprising two symmetrically arranged "U"-shaped limiting plates (15), the openings of the "U"-shaped limiting plates (15) being arranged opposite to each other, each limiting plate (15) being located below each working roll (1), and the space between the two limiting plates (15) being used to accommodate the mounting seat (8).

7. A bearing seat quick replacement device according to claim 1, characterized in that: The platform (3) is hollow and has an opening at the top, and a sieve plate (16) is installed at the opening.

8. A bearing seat quick replacement device according to claim 7, characterized in that: The sieve plate (16) comprises a plurality of evenly arranged horizontal plates and vertical plates, and the plurality of horizontal plates and vertical plates are fixedly connected to form a grid shape.

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