Quick turnover mechanism for maintenance of a cold rolling mill roll chock

Abstract

The application relates to a quick turnover mechanism for maintaining a cold rolling mill roller bearing seat, which comprises a base, a lifting seat driven to lift by a lifting assembly arranged at the left end of the base, a maintenance platform for mounting the roller bearing seat rotatably connected to the right side of the lifting seat, the maintenance platform being driven to rotate by a rotating assembly and the rotating axis being arranged along the transverse direction; a turnover seat rotatably connected to the right end of the lifting seat through a transverse rotating shaft, the axis of the turnover seat extending along the transverse direction; the maintenance platform being fixedly arranged at the right end face of the turnover seat, and the length direction of the maintenance platform being parallel to the axis direction of the turnover seat. The application has the advantages of reasonable structure design, the rotating assembly driving the cold rolling mill roller bearing seat to turn over through the maintenance platform, the height of the maintenance platform being adjusted by the lifting assembly, the flexibility of the maintenance operation being improved, the whole maintenance process not needing to repeatedly mount and dismount the crane hook and not needing to turn over with the help of the crane, the efficiency of the whole maintenance operation being effectively improved, and the safety being improved.

Description

Technical Field

[0001] This invention relates to a rapid reversing mechanism for the maintenance of cold rolling mill roll bearing housings. Background Technology

[0002] During the operation of a cold rolling mill, the bearing housings of its rolls require regular maintenance. Due to the significant weight of the bearing housings, this maintenance typically necessitates the use of an overhead crane for hoisting. After maintenance is completed at one end of the bearing housing, the overhead crane is used to flip it over before maintaining the other end. This entire maintenance process involves repeatedly hoisting and flipping the bearing housing using an overhead crane, requiring repeated loading and unloading of the crane hook. The operation is cumbersome, time-consuming, and inefficient. Furthermore, the bearing housings are prone to collisions and foot injuries during hoisting and flipping, making safety a concern. Summary of the Invention

[0003] The present invention addresses the problems existing in the prior art. Specifically, the technical problem to be solved by the present invention is to provide a quick-turning mechanism for the maintenance of cold rolling mill roll bearing housings. The mechanism is reasonably designed and effectively improves work efficiency and safety.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a quick-turning mechanism for the maintenance of cold rolling mill roll bearing housing, comprising a base, wherein a lifting seat driven to lift by a lifting component is provided at the left end of the base, and a maintenance platform for installing the roll bearing housing is rotatably connected to the right side of the lifting seat, wherein the maintenance platform is driven to rotate by a rotating component and the rotation axis is arranged in a transverse direction.

[0005] Furthermore, the right end of the lifting seat is rotatably connected to a tilting seat via a transverse pivot, and the axis of the tilting seat extends transversely; the maintenance platform is fixedly installed on the right end face of the tilting seat, and the length direction of the maintenance platform is parallel to the axis direction of the tilting seat.

[0006] Furthermore, the rotating assembly includes a rotary motor, a first gear, and a second gear. The rotary motor is installed inside the lifting seat. The output shaft of the rotary motor extends to the right and is connected to the first gear. The second gear is installed at the left end of the tilting seat and is coaxially arranged with the transverse rotating shaft. The second gear meshes with the first gear. The rotary motor drives the tilting seat to rotate through the first gear and the second gear.

[0007] Furthermore, the lifting assembly includes a pair of vertical guide rails disposed on the front and rear sides of the lifting seat, a vertical screw between the pair of vertical guide rails, the vertical screw being driven to rotate by a lifting motor disposed above it, the vertical screw being connected to a lifting nut fixed to the lifting seat, and a pair of lifting wheels distributed in front and rear at both the upper and lower ends of the lifting seat, the lifting wheels extending into the vertical guide rails located on the same side and rolling vertically with the vertical guide rails.

[0008] Furthermore, rectangular slots are provided at both the front and rear ends of the lifting seat on the side of each lifting wheel. Lifting auxiliary wheels are installed in the rectangular slots. The axles of the lifting auxiliary wheels are arranged horizontally, and the lifting auxiliary wheels are vertically rolled in cooperation with the side edge of the vertical guide rail.

[0009] Furthermore, the maintenance platform is provided with a clamp for fixing the roll bearing housing. The clamp includes a pair of L-shaped clamp base plates symmetrically distributed on the left and right. The clamp base plates are fixed on the maintenance platform. A pair of inverted L-shaped pressure plates symmetrically distributed on the left and right are provided between the upper ends of the pair of clamp base plates. The lower end of the vertical section of the pressure plate is connected to the clamp base plate located on the same side by connecting bolts. The horizontal section of the pair of pressure plates is used to press down on the flanges on the left and right sides of the roll bearing housing, respectively.

[0010] Furthermore, the fixture also includes a pair of symmetrically distributed front and rear limiting plates, which are fixed on the maintenance platform. The pair of limiting plates are used to abut against the front and rear sides of the end of the roll bearing seat near the maintenance platform.

[0011] Furthermore, the maintenance platform has several longitudinally spaced first inverted T-shaped grooves at both its left and right ends. First T-shaped bolts are installed within these grooves, penetrating upwards through the clamp seat plate and engaging with a first nut to lock the clamp seat plate onto the maintenance platform. The maintenance platform also has several transversely spaced second inverted T-shaped grooves at its front and rear ends. Second T-shaped bolts are installed within these grooves, penetrating upwards through a limiting plate and engaging with a second nut to lock the limiting plate onto the maintenance platform.

[0012] Furthermore, an inclined reinforcing rod is fixed between the bottom of the maintenance platform and the right end face of the flipping seat.

[0013] Furthermore, a protective railing is provided on the outside of the maintenance platform on the base.

[0014] Compared with the prior art, the present invention has the following advantages: The present invention has a reasonable structural design. When in use, the disassembled cold rolling mill roll bearing housing is installed on the maintenance platform. The rotating component drives the cold rolling mill roll bearing housing to rotate through the maintenance platform to facilitate adjustment of the maintenance position. The lifting component can adjust the height of the maintenance platform, improve the flexibility of the maintenance operation, and can adapt to operators of different heights. The entire maintenance process does not require repeated disassembly and reassembly of the crane hook, nor does it require the use of the crane for rotation, which effectively improves the efficiency of the entire maintenance operation and enhances safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the left-side structure according to an embodiment of the present invention;

[0017] Figure 3 This is a top view of the structure of an embodiment of the present invention;

[0018] Figure 4 This is a partial right-view structural diagram of an embodiment of the present invention;

[0019] Figure 5 yes Figure 4 The structural diagram of the maintenance platform is omitted.

[0020] Figure 6 This is a schematic diagram of the left-side structure of the lifting seat in an embodiment of the present invention.

[0021] In the picture:

[0022] 1-Base; 2-Lifting seat; 3-Lifting assembly; 4-Maintenance platform; 5-Roller bearing seat; 51-Flange; 6-Horizontal rotating shaft; 7-Tilting seat; 8-Rotary motor; 9-First gear; 10-Second gear; 11-Vertical guide rail; 12-Vertical screw; 13-Lifting motor; 14-Lifting nut; 15-Lifting wheel; 16-Connecting shaft; 17-Motor base plate; 18-Lifting auxiliary wheel; 19-Clamping base plate; 20-Pressure plate; 21-Connecting bolt; 22-Limiting plate; 23-First inverted T-shaped slide groove; 24-First T-bolt; 25-Second inverted T-shaped slide groove; 26-Second T-bolt; 27-Reinforcing rod; 28-Guardrail. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0025] like Figures 1-6 As shown, the present invention discloses a quick-turning mechanism for the maintenance of cold rolling mill roll bearing housings, specifically used for the maintenance operation of cold rolling mill roll bearing housings. Specifically, it includes a rectangular base 1 horizontally installed on the ground, a lifting seat 2 located above the left end of the base 1, the lifting seat 2 being driven vertically by a lifting assembly 3, and a rectangular maintenance platform 4 rotatably connected to the right side of the lifting seat 2. The maintenance platform 4 is used to install the roll bearing housing 5, and the maintenance platform 4 is driven to rotate by a rotating assembly, with the rotation axis of the maintenance platform arranged horizontally. During use, the disassembled cold rolling mill roll bearing housing is hoisted onto the maintenance platform by a crane, and the cold rolling mill roll bearing housing 5 is installed on the maintenance platform 4. Then, an operator stands on the ground and is located outside the base 1 to perform maintenance on the roll bearing housing 5. During the maintenance process, the rotating component drives the cold rolling mill roll bearing housing 5 to rotate via the maintenance platform 4 to facilitate adjustment of the maintenance position. The lifting component can adjust the height of the maintenance platform, improving the flexibility of the maintenance operation and accommodating operators of different heights. The entire maintenance process does not require repeated disassembly and reassembly of the crane hook, nor does it require the use of the crane for rotation, effectively improving the efficiency of the entire maintenance operation and enhancing safety.

[0026] In this embodiment, the lifting seat 2 has a horizontal U-shaped cross-section when viewed from above. The right end of the lifting seat 2 is rotatably connected to a circular flip seat 7 via a transverse rotating shaft 6. The axis of the flip seat 7 extends laterally, and the transverse rotating shaft 6 is connected to the center of the flip seat 7, that is, the transverse rotating shaft and the flip seat are coaxially arranged. The maintenance platform 4 is fixedly arranged on the right end face of the flip seat 7. The length direction of the maintenance platform 4 is parallel to the axis direction of the flip seat 7. The maintenance platform and the lifting seat are rotatably connected through the flip seat and the transverse rotating shaft.

[0027] In this embodiment, the rotating assembly includes a rotary motor 8, a first gear 9, and a second gear 10. The diameter of the second gear 10 is larger than the diameter of the first gear 9. The rotary motor 8 is installed laterally inside the lifting seat 2. The output shaft of the rotary motor 8 extends to the right and is connected to the first gear 9. The second gear 10 is installed at the left end of the tilting seat 7 and is coaxially arranged with the transverse rotating shaft 6. The second gear 10 meshes with the first gear 9. The rotary motor 8 drives the tilting seat 7 to rotate through the first gear 9 and the second gear 10, and the tilting seat 7 drives the maintenance platform 4 to rotate synchronously. By controlling the forward and reverse rotation of the rotary motor, the maintenance platform can be rotated forward or backward. Preferably, the maximum angle of forward or backward rotation of the maintenance platform is 90 degrees.

[0028] In this embodiment, the lifting assembly 3 includes a pair of vertical guide rails 11 disposed on the front and rear sides of the lifting seat 2. The vertical guide rails have a groove-shaped cross-section when viewed from above. A vertical screw 12 is provided between the pair of vertical guide rails 11. The vertical screw 12 is driven to rotate by a lifting motor 13 located above it. The vertical screw 12 is connected to a lifting nut 14 fixed inside the lifting seat 2. A pair of lifting wheels 15 are provided at both the upper and lower ends of the lifting seat 2, distributed front and rear. The axles of the lifting wheels are arranged longitudinally. The lifting wheels 15 extend into the vertical guide rails 11 located on the same side and roll vertically with the vertical guide rails 11. During operation, the lifting motor drives the vertical screw to rotate, and the rotational motion of the vertical screw is converted into the vertical linear movement of the lifting seat, while the lifting wheels on the lifting seat roll along the vertical guide rails. Preferably, the lifting stroke of the lifting seat is 500 mm.

[0029] In this embodiment, the upper and lower ends of the lifting seat 2 are provided with longitudinally arranged connecting shafts 16, and a pair of lifting wheels 15 are installed at the front and rear ends of the connecting shafts 16.

[0030] In this embodiment, a motor base plate 17 is provided between the tops of a pair of vertical guide rails 11, and the lifting motor 13 is vertically mounted on the motor base plate 17.

[0031] In this embodiment, rectangular slots are provided at both the front and rear ends of the lifting seat 2 on the side of each lifting wheel. Lifting auxiliary wheels 18 are installed within these rectangular slots. The axles of the lifting auxiliary wheels 18 are arranged laterally, and the lifting auxiliary wheels 18 roll vertically with the side edges of the vertical guide rail 11. By providing lifting auxiliary wheels, the forward and backward offset of the lifting seat during lifting is reduced, thereby improving the stability of the lifting seat's movement.

[0032] In this embodiment, to fix the roll bearing housing to the maintenance platform, the maintenance platform 4 is equipped with a clamp for fixing the roll bearing housing. Specifically, the clamp includes a pair of L-shaped clamp base plates 19 symmetrically distributed on the left and right. The horizontal section of the clamp base plate 19 is fixed on the maintenance platform 4. A pair of inverted L-shaped pressure plates 20 symmetrically distributed on the left and right are arranged between the upper ends of the vertical sections of the pair of clamp base plates 19. The lower ends of the vertical sections of the pressure plates 20 are connected to the clamp base plates 19 on the same side via connecting bolts 21. The horizontal sections of the pair of pressure plates 20 are used to press down on the flanges 51 on the left and right sides of the roll bearing housing 5, respectively. During operation, the roll bearing housing is placed on the maintenance platform, and the pair of pressure plates press down on the flanges on the left and right sides of the roll bearing housing, thereby firmly pressing the roll bearing housing onto the maintenance platform.

[0033] In this embodiment, the fixture also includes a pair of symmetrically distributed front and rear limiting plates 22. The cross-section of the limiting plates 22 is right-angled. The limiting plates 22 are fixed on the maintenance platform 4. The pair of limiting plates 22 are used to abut against the front and rear sides of the end of the roll bearing seat 5 near the maintenance platform 4 to further prevent the roll bearing seat from moving in the front and rear directions during the rotation of the maintenance platform.

[0034] In this embodiment, the maintenance platform 4 is provided with a plurality of first inverted T-shaped slide grooves 23 that are spaced apart longitudinally at both the left and right ends. The first inverted T-shaped slide grooves 23 extend laterally. A first T-shaped bolt 24 is provided in the first inverted T-shaped slide groove 23. The first T-shaped bolt 24 passes through the clamp seat plate 19 upward and is locked with the first nut to lock the clamp seat plate to the maintenance platform.

[0035] In this embodiment, the front and rear ends of the maintenance platform 4 are provided with a plurality of second inverted T-shaped slide grooves 25 distributed laterally. The second inverted T-shaped slide grooves 25 extend longitudinally. A second T-shaped bolt 26 is provided in the second inverted T-shaped slide groove 25. The second T-shaped bolt 26 passes through the limiting plate 22 upward and is locked with the second nut to lock the limiting plate onto the maintenance platform.

[0036] In this embodiment, in order to improve the connection strength between the maintenance platform and the flipping seat, an inclined reinforcing rod 27 is fixed between the middle of the bottom surface of the maintenance platform 4 and the right end face of the flipping seat 7.

[0037] In this embodiment, to improve safety, a protective railing 28 is provided on the base 1 outside the maintenance platform. The width of the protective railing is greater than the rotation range of the maintenance platform to avoid interference.

[0038] In this embodiment, the lifting motor can be a 5.5KW motor, which is connected by a gearbox. The lifting screw has a size of M50X4. The rotary motor is a 3KW brake motor. The base and vertical guide rail are made of I-beams, and the lifting seat is welded from 25mm iron plates.

[0039] If this invention discloses or relates to components or structural parts that are fixedly connected to each other, then, unless otherwise stated, a fixed connection can be understood as: a fixed connection that can be detached (e.g., using bolts or screws), or a fixed connection that cannot be detached (e.g., riveting, welding). Of course, a fixed connection can also be replaced by an integral structure (e.g., manufactured in one piece using a casting process) (except where it is obviously impossible to use an integral molding process).

[0040] In addition, unless otherwise stated, the terms used in any of the technical solutions disclosed in this invention to indicate positional relationships or shapes include states or shapes that are similar to, close to, or approximate with those states or shapes.

[0041] Any component provided by this invention can be assembled from multiple individual components or can be a single component manufactured by a one-piece molding process.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the present invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A quick roll-over mechanism for maintenance of a cold-rolling mill roll chock, characterized in that: The base is provided with a lifting seat driven by a lifting assembly at the left end, a maintenance platform for mounting a roll bearing seat is rotatably connected to the right side of the lifting seat, the maintenance platform is driven to rotate by a rotating assembly, and the rotating axis is arranged in the transverse direction; The right end of the lifting seat is rotatably connected to a turnover seat through a transverse rotating shaft, and the axis of the turnover seat extends in the transverse direction; the maintenance platform is fixedly arranged at the right end face of the turnover seat, and the length direction of the maintenance platform is parallel to the axis direction of the turnover seat; The lifting assembly comprises a pair of vertical guide rails arranged at the front and rear sides of the lifting seat, a vertical screw is arranged between the pair of vertical guide rails, the vertical screw is driven to rotate by a lifting motor arranged above the vertical screw, the vertical screw is connected with a lifting nut fixed to the lifting seat, a pair of lifting wheels are arranged at the upper and lower ends of the lifting seat and are distributed in front of and behind the lifting seat, the lifting wheels extend into the vertical guide rails on the same side and are in vertical rolling cooperation with the vertical guide rails; Rectangular notches are arranged at the front and rear ends of the lifting seat on the sides of each lifting wheel, lifting auxiliary wheels are arranged in the rectangular notches, the wheel shafts of the lifting auxiliary wheels are arranged in the transverse direction, and the lifting auxiliary wheels are in vertical rolling cooperation with the side edges of the vertical guide rails; A clamp for fixing the roll bearing seat is arranged on the maintenance platform, the clamp comprises a pair of left and right symmetrically distributed L-shaped clamp seat plates, the clamp seat plates are fixed to the maintenance platform, a pair of left and right symmetrically distributed inverted L-shaped pressing plates are arranged between the upper ends of the pair of clamp seat plates, the vertical sections of the pressing plates are connected with the clamp seat plates on the same side through connecting bolts at the lower ends, and the horizontal sections of the pair of pressing plates are used for respectively pressing the flanges on the left and right sides of the roll bearing seat.

2. A quick roll-over mechanism for maintenance of a roll chock of a cold rolling mill according to claim 1, characterized in that: The rotating assembly comprises a rotating motor, a first gear and a second gear, the rotating motor is arranged in the interior of the lifting seat, the output shaft of the rotating motor extends to the right side and is connected with the first gear, the second gear is arranged coaxially with the transverse rotating shaft at the left end of the turnover seat, the second gear is in meshing cooperation with the first gear, and the rotating motor drives the turnover seat to rotate through the first gear and the second gear.

3. A quick roll-over mechanism for maintenance of a roll chock of a cold rolling mill according to claim 1, characterized in that: The clamp further comprises a pair of front and rear symmetrically distributed limiting leaning plates, the limiting leaning plates are fixed to the maintenance platform, and the pair of limiting leaning plates are used for abutting against the front and rear sides of one end of the roll bearing seat close to the maintenance platform.

4. A quick roll-over mechanism for the maintenance of a roll chock of a cold rolling mill according to claim 3, characterized in that: First inverted T-shaped sliding grooves are arranged at the left and right ends of the maintenance platform and are spaced apart in the longitudinal direction, first T-shaped bolts are arranged in the first inverted T-shaped sliding grooves, the first T-shaped bolts are upwardly penetrated through the clamp seat plates and are locked with first nuts to lock the clamp seat plates to the maintenance platform, second inverted T-shaped sliding grooves are arranged at the front and rear ends of the maintenance platform and are spaced apart in the transverse direction, second T-shaped bolts are arranged in the second inverted T-shaped sliding grooves, the second T-shaped bolts are upwardly penetrated through the limiting leaning plates and are locked with second nuts to lock the limiting leaning plates to the maintenance platform.

5. A quick roll-over mechanism for maintenance of a roll chock of a cold rolling mill according to claim 1, characterized in that: A reinforcing rod is fixed between the bottom of the maintenance platform and the right end face of the turnover seat and is arranged in an inclined manner.

6. A quick roll-over mechanism for maintenance of a roll chock of a cold rolling mill according to claim 1, characterized in that: Protective guardrails are arranged on the base outside the maintenance platform.

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