Rolling mill bearing replacement device

Abstract

The utility model discloses a rolling mill bearing replacing device which comprises a bottom plate, a fixed table and a movable table are arranged on the upper side face of the bottom plate, a chuck is arranged on each of the movable table and the fixed table, a pressing plate is arranged in each chuck, and a positioning device for controlling the distance between the pressing plate and the axis of each chuck is arranged in each chuck. A lifting table used for bearing the bearing seat and the bearing body is further installed in the bottom plate through a lifting assembly, and rubber sleeves are wrapped on the pressing plate and the rotating shaft which are used for making contact with the bearing seat and the bearing body so as to prevent the bearing seat and the bearing body from being scratched. The position of the pressing plate can be adjusted, and the vertical position of the lifting platform used for bearing the bearing seat and the bearing body can be adjusted, so that the bearing seat and the bearing body of different specifications can be disassembled through simple adjustment, and the application range is wide; a supporting rod is additionally arranged for the pressing plate which is mainly used for bearing, so that the bearing capacity of the pressing plate is improved.

Description

Technical Field

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

[0002] When the rolling mill needs to replace the bearing, the bearing seat and the bearing inside are generally disassembled as a whole, which requires the staff to disassemble the bearing seat and the bearing body, and then disassemble and assemble the bearing body from the bearing seat. The existing disassembly and assembly scheme of the bearing body in the bearing seat is generally that the staff uses a hammer tool to knock it, so as to separate the bearing body from the bearing seat. However, this method is easy to cause damage to the inside of the bearing seat and reduce its service life.

[0003] A rolling mill bearing seat bearing disassembly device is disclosed in application No. 202021807427.X, in which the bearing seat and the bearing body are disassembled by relatively moving bearing clamps and push columns, but the device has defects: the sizes of the push columns and the bearing clamps are fixed. If bearing seats and bearing bodies of different sizes are to be disassembled, the push columns and the bearing clamps must be disassembled and replaced first, and the upper and lower positions of the bearing clamps and the push columns must be adjusted, which is rather cumbersome. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a rolling mill bearing replacement device to solve the problem that the existing rolling mill bearing removal device has a small application range and cannot be applied to rolling mills of different specifications.

[0005] The utility model provides the following technical solutions: a rolling mill bearing replacement device, comprising a bottom plate, a fixed platform and a movable platform are arranged on the upper side of the bottom plate, the fixed platform is located on the right side of the movable platform, a motor for controlling the left and right positions of the movable platform is arranged on the bottom plate, a chuck is arranged on the mutually close sides of the movable platform and the fixed platform, a plurality of pressing plates extending outside the chuck are arranged in the chuck, and a positioning device for controlling the position of the pressing plate from the axis of the chuck is arranged in the chuck, and the pressing plates extending from the two chucks are arranged facing each other;

[0006] A lifting platform for supporting the bearing seat and the bearing body is also installed in the base plate through a lifting assembly.

[0007] Preferably, in the chuck on the right side, the pressing plate located at the lowest point only moves up and down.

[0008] Preferably, a support rod is hinged on the pressure plate located at the lowest point on the right side, an abutment plate for abutting the support rod is slidably connected to the upper side of the base plate, and a positioning shaft threadedly connected to the abutment plate is rotatably connected in the fixed platform.

[0009] Preferably, a vertically arranged driving shaft is rotatably connected in the fixed platform, a handle is provided at the upper end of the driving shaft, and the driving shaft is connected to the positioning shaft via a bevel gear set.

[0010] Preferably, a No. 1 rubber sleeve is provided at one end of the pressing plate away from the chuck.

[0011] Preferably, a groove is provided on the upper side of the lifting platform, and a plurality of rotating shafts are distributed on the left and right sides of the groove, and the outer contour of the rotating shaft is concave to form a concave wheel style;

[0012] The exterior of the rotating shaft is covered with a No. 2 rubber sleeve.

[0013] Preferably, the positioning device comprises a cavity provided in the chuck, a slide groove penetrating the chuck outward is provided in the side of the cavity, the pressure plate penetrates the slide groove and can move along the direction of the slide groove, a flat screw disk is rotatably connected in the cavity, and a connecting plate connected to the flat screw disk's plane threaded structure is fixed at one end of the pressure plate;

[0014] A gear ring is arranged on the side of the flat screw disc away from the pressure plate, and a joystick is rotatably connected in the curved side of the chuck, and a gear meshing with the gear ring is arranged at the end of the joystick.

[0015] Preferably, the lifting assembly includes four sliding bars distributed in a matrix on the lower side of the lifting platform, the sliding bars pass through the bottom plate, and the bottom plate is provided with a vertically arranged electric cylinder for controlling the up and down position of the lifting platform.

[0016] Preferably, four universal wheels are mounted on the lower side of the base plate.

[0017] The utility model provides a rolling mill bearing replacement device, which has the following beneficial effects:

[0018] The utility model is used to separate the bearing seat and the bearing body, and the pressure plate and the rotating shaft used for contacting the bearing seat and the bearing body in the utility model are wrapped with rubber sleeves to avoid scratching the bearing seat and the bearing body;

[0019] The pressing plate in the utility model can adjust the position, and the lifting platform for carrying the bearing seat and the bearing body can adjust the upper and lower positions, so that the utility model can be used to split the bearing seats and bearing bodies of different specifications by simple adjustment, and has a wide range of applications;

[0020] In the utility model, a support rod is additionally arranged for a pressure plate mainly used for bearing weight, so as to improve its load-bearing capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0022] Figure 2 It is the front view of the utility model;

[0023] Figure 3 This is a schematic diagram of the appearance of the utility model from another perspective;

[0024] Figure 4 yes Figure 3 Schematic diagram of the structure inside the fixed platform.

[0025] In the figure:

[0026] 11. Base plate; 12. Fixed platform; 13. Moving platform; 14. Chuck; 15. Pressing plate; 16. Cavity; 17. Flat screw disk; 18. Gear ring; 19. Joystick; 20. Lifting platform; 21. Support rod; 22. Abutment plate; 23. Positioning shaft; 24. Driving shaft; 25. Rubber sleeve; 26. Rotating shaft; 27. Sliding rod; 31. Motor. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Reference Figure 1-Figure 4 According to an embodiment of a rolling mill bearing replacement device of the utility model, it includes a bottom plate 11, a fixed platform 12 and a movable platform 13 are provided on the upper side of the bottom plate 11, the fixed platform 12 is located on the right side of the movable platform 13, and a lifting platform 20 for carrying a bearing seat and a bearing body is installed in the bottom plate 11 through a lifting assembly, and the lifting platform 20 is located between the fixed platform 12 and the movable platform 13, and a motor 31 for controlling the left and right positions of the movable platform 13 is provided on the bottom plate 11, specifically, the output shaft extending from the motor is connected with a threaded shaft, and the threaded shaft is threadedly connected with a protrusion fixed to the left end of the movable platform 13, and a chuck 14 is respectively provided on the sides of the movable platform 13 and the fixed platform 12 that are close to each other, and a plurality of pressing plates 15 extending to the outside of the chuck 14 are installed in the chuck 14, and a positioning device for controlling the position of the pressing plate 15 from the axis of the chuck 14 is provided in the chuck 14, and the pressing plates 15 extending from the two chucks 14 are arranged facing each other;

[0032] When it is necessary to separate the bearing seat and the bearing body, the staff places the bearing seat on the lifting platform 20 and adjusts the positions of the pressure plates 15 in the left and right chucks 14 so that the pressure plate 15 on the left can be attached to the bearing body, and the pressure plate 15 on the right can be attached to the bearing seat (the pressure plates 15 in the two chucks 14 need to be staggered). Then the motor 31 controls the movable platform 13 to move to the right. At this time, the chuck 14 and the pressure plate 15 on the left can push the bearing body and make it move relative to the bearing seat. Finally, the bearing body will be contained in the pressure plate 15 on the right.

[0033] In the chuck 14 on the right side, the pressure plate 15 located at the lowest point can only move up and down. In order to improve the load-bearing capacity of the pressure plate 15 and avoid bending and breaking when it carries the bearing body, a support rod 21 is hinged on the pressure plate 15 located at the lowest point on the right side, and an abutment plate 22 for abutting the other end of the support rod 21 is slidably connected to the upper side surface of the base plate 11, and a positioning shaft 23 threadedly connected to the abutment plate 22 is rotatably connected in the fixed platform 12. After adjusting the position of the pressure plate 15, the staff can rotate the positioning shaft 23 and adjust the position of the abutment plate 22 until the support rod 21 abuts against the abutment plate 22. At this time, the abutment plate 22 supports the pressure plate 15 located at the lowest point on the right side.

[0034] In addition, in order to facilitate the position adjustment of the abutment plate 22, a vertically arranged drive shaft 24 is rotatably connected in the fixed table 12, a handle is provided at the upper end of the drive shaft 24, and the drive shaft 24 is connected to the positioning shaft 23 through a bevel gear set, that is, the staff can rotate the handle to adjust the position of the abutment plate 22.

[0035] In order to facilitate the positioning and sliding of the bearing seat on the lifting platform 20, a groove is provided on the upper side of the lifting platform 20. A plurality of rotating shafts 26 are distributed on the left and right sides of the groove. The outer contour of the rotating shaft 26 is concave to form a concave wheel style.

[0036] In order to avoid damage to the bearing seat, a first rubber sleeve 25 is installed at one end of the pressure plate 15 away from the chuck 14, and the outside of the rotating shaft 26 is covered with a second rubber sleeve.

[0037] The lifting assembly includes four slide bars 27 distributed in a matrix on the lower side of the lifting platform 20. The slide bars 27 penetrate the base plate 11, and a vertically arranged electric cylinder for controlling the up and down position of the lifting platform 20 is provided in the base plate 11. The slide bars 27 can improve the stability of the lifting platform 20 when it moves up and down, and increase the service life of the electric cylinder. In addition, four universal wheels are installed on the lower side of the base plate 11 to facilitate the movement of the base plate 11 and provide installation space for the electric cylinder.

[0038] The chuck 14 is a variant of the three-jaw chuck commonly seen on the market. In this embodiment, the positioning device includes a cavity 16 disposed in the chuck 14. A slide groove penetrating the chuck 14 outward is disposed in the side of the cavity 16. The pressure plate 15 penetrates the slide groove and can move along the direction of the slide groove. A flat screw disk 17 is rotatably connected to the side of the cavity 16. A connecting plate connected to the flat screw disk 17 with a planar threaded structure is fixed to one end of the pressure plate 15.

[0039] A gear ring 18 is provided on the side of the flat screw disk 17 away from the pressure plate 15, and a joystick 19 is rotatably connected to the curved side of the chuck 14, and a gear meshing with the gear ring 18 is installed at the end of the joystick 19.

[0040] The staff can rotate the operating lever 19 to rotate the gear ring 18 and the flat screw disk 17. When the flat screw disk 17 rotates, the connecting plate and the pressure plate 15 will move closer to or away from the axis of the chuck 14 along the slide groove, and then adjust their positions.

[0041] Working principle: The bearing seat is placed on the lifting platform 20. At this time, the pressure plate 15 on the right is attached to the bearing seat, and the pressure plate 15 on the left is attached to the bearing body in the bearing seat. Then the motor 31 works and drives the movable platform 13 to move to the right. At this time, the pressure plate 15 on the left can push the bearing body to the right and separate it from the bearing seat. The bearing body will be located in the pressure plate 15 on the right, and the pressure plate 15 on the right will be supported by the support rod 21 to avoid bending and breakage.

[0042] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A rolling mill bearing replacement device, comprising a bottom plate (11), characterized in that: A fixed platform (12) and a movable platform (13) are provided on the upper side of the base plate (11), the fixed platform (12) being located on the right side of the movable platform (13), a motor (31) for controlling the left and right position of the movable platform (13) being provided on the base plate (11), a chuck (14) being provided on the mutually adjacent sides of the movable platform (13) and the fixed platform (12), the chuck (14) being provided with a plurality of pressing plates (15) extending outside the chuck (14), and a positioning device for controlling the position of the pressing plates (15) from the axis of the chuck (14), the pressing plates (15) extending from the two chucks (14) being arranged facing each other; A lifting platform (20) for supporting the bearing seat and the bearing body is also installed in the base plate (11) via a lifting assembly.

2. A rolling mill bearing replacement device according to claim 1, characterized in that: In the chuck (14) on the right side, the pressure plate (15) located at the lowest position can only move up and down.

3. A rolling mill bearing replacement device according to claim 2, characterized in that: A support rod (21) is hingedly connected to the pressure plate (15) located at the lowest point on the right side, an abutment plate (22) for abutting the support rod (21) is slidably connected to the upper side of the bottom plate (11), and a positioning shaft (23) threadedly connected to the abutment plate (22) is rotatably connected inside the fixed platform (12).

4. A rolling mill bearing replacement device according to claim 3, characterized in that: A vertically arranged driving shaft (24) is rotatably connected inside the fixed platform (12), a handle is provided at the upper end of the driving shaft (24), and the driving shaft (24) is connected to the positioning shaft (23) via a bevel gear set.

5. A rolling mill bearing replacement device according to claim 1, characterized in that: A first rubber sleeve (25) is mounted on one end of the pressure plate (15) away from the chuck (14).

6. A rolling mill bearing replacement device according to claim 1, characterized in that: The upper side of the lifting platform (20) is provided with a groove, and a plurality of rotating shafts (26) are distributed on the left and right sides of the groove, and the outer contour of the rotating shaft (26) is concave to form a concave wheel style; The exterior of the rotating shaft (26) is covered with a second rubber sleeve.

7. A rolling mill bearing replacement device according to claim 1, characterized in that: The positioning device comprises a cavity (16) arranged in the chuck (14); a slide groove penetrating outwardly through the chuck (14) is arranged in the side of the cavity (16); the pressure plate (15) penetrates the slide groove and can move along the direction of the slide groove; a flat screw disk (17) is rotatably connected in the cavity (16); and a connecting plate connected to the flat screw disk (17) with a planar thread structure is fixed at one end of the pressure plate (15); A gear ring (18) is provided on the side of the flat screw disk (17) away from the pressure plate (15), and a joystick (19) is rotatably connected to the curved side of the chuck (14), and a gear meshing with the gear ring (18) is provided at the end of the joystick (19).

8. A rolling mill bearing replacement device according to claim 1, characterized in that: The lifting assembly comprises four slide bars (27) arranged in a matrix on the lower side of the lifting platform (20), the slide bars (27) passing through the bottom plate (11), and a vertically arranged electric cylinder for controlling the upper and lower positions of the lifting platform (20) is provided in the bottom plate (11).

9. A rolling mill bearing replacement device according to claim 1, characterized in that: Four universal wheels are mounted on the lower side of the base plate (11).

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