A tool for improving the transfer efficiency of a work roll of a cold rolling mill
By designing a suspension beam structure, the synchronous hoisting of the upper and lower work rolls of the cold rolling mill is achieved, solving the problem of low hoisting efficiency in traditional cold rolling mills, improving production efficiency and saving labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINALCO RUIMIN CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional cold rolling mills have low hoisting efficiency for work rolls, especially during replacement or maintenance, which leads to extended production line downtime, affects production rhythm, and increases labor costs.
Design a suspended beam structure with vertical extension plates and supports, capable of simultaneously lifting the upper and lower work rolls of a cold rolling mill, achieving synchronous lifting through the supports and locking screws.
This technology enables the synchronous hoisting of the two work rolls of the cold rolling mill, significantly improving transfer efficiency, reducing production line downtime, and lowering labor costs.
Smart Images

Figure CN224547846U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a tooling for improving the transfer efficiency of work rolls in cold rolling mills. Background Technology
[0002] As the core equipment for rolling sheet / strip metal, the cold rolling mill's work rolls are key components that directly contact the rolled material and complete its plastic deformation. The precision, surface quality, and installation condition of the work rolls directly affect key indicators such as the thickness uniformity and surface finish of the rolled products. Therefore, efficient transfer and installation of the work rolls are crucial during equipment maintenance, roll type replacement, or fault repair.
[0003] In traditional processes, cold rolling mills typically employ two parallel work rolls (an upper work roll and a lower work roll) to collaboratively complete the rolling action. In actual production, when work rolls need replacement or maintenance, slings (such as wire rope slings or synthetic fiber slings) are commonly used for lifting. However, only one work roll can be lifted at a time, significantly reducing transfer efficiency. The total transfer time for two rolls is more than twice that of a single roll. Especially in continuous production or emergency maintenance scenarios, this can easily lead to prolonged production line downtime, affecting the overall production rhythm and increasing labor costs. Therefore, improving the efficient synchronous lifting technology for cold rolling mill work rolls has become an urgent problem to be solved in this field.
[0004] Based on this, this case proposes a tooling for improving the transfer efficiency of work rolls in cold rolling mills. Utility Model Content
[0005] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a tooling for improving the transfer efficiency of work rolls in cold rolling mills.
[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a tooling for improving the transfer efficiency of work rolls in a cold rolling mill, including a suspension beam, wherein vertical extension plates are fixed at the upper left, lower left, upper right, and lower right corners of the bottom of the suspension beam, and two support members are evenly distributed vertically on each vertical extension plate. The support members are slidably connected to the vertical extension plate and are connected to the vertical extension plate with locking screws; and end-side limiting plates are also fixedly connected to each vertical extension plate.
[0007] Preferably, a suspension hole is fixedly provided on the top of the suspension beam.
[0008] Preferably, each of the vertical extension plates is fixed with a sliding sleeve whose axial direction is radial to that of the working roller, and the support members are all coaxially inserted in the sliding sleeve.
[0009] Preferably, the inner end of each support member is provided with a support plane for supporting the mounting seat at the end of the work roller, and the outer end of each support member is connected with a pull ring.
[0010] Preferably, each of the sliding sleeves has a mounting through hole on its periphery, and each of the support members has an internal thread hole on its periphery. The locking screws pass through the corresponding mounting through holes and are locked into the corresponding internal thread holes.
[0011] Preferably, a triangular stiffening plate is fixed between the sliding sleeve and the vertical extension plate.
[0012] Preferably, the four sets of supports at the top of the bottom of the suspension beam are on the same horizontal plane, and the four sets of supports at the bottom are on another horizontal plane.
[0013] Preferably, the end-side limiting plate is L-shaped.
[0014] Preferably, one side of the L-shaped end-side limiting plate is fixed to the inner end of the corresponding vertical extension plate.
[0015] Preferably, the other side of the L-shaped end-side limiting plate is located on the inner side of the mounting seat at the end of the work roll to limit excessive axial movement of the mounting seat at the end of the work roll.
[0016] Compared with the prior art, the present invention has the following beneficial effects: the tooling for improving the transfer efficiency of the cold rolling mill work rolls can realize the one-time hoisting of two work rolls of the cold rolling mill, namely the upper work roll and the lower work roll, so as to facilitate the simultaneous hoisting of the upper and lower work rolls onto the cold rolling mill for installation, which significantly improves the transfer efficiency.
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0018] Figure 1 This is a side view of an embodiment of the present utility model.
[0019] Figure 2 for Figure 1 A magnified view of part A.
[0020] Figure 3 This is a top view of an embodiment of the present utility model.
[0021] Figure 4 This is a front view of an embodiment of the present utility model.
[0022] In the diagram: 1. Suspension beam; 2. Vertical extension plate; 3. Support component; 4. Locking screw; 5. End side limiting plate; 6. Suspension hanging hole; 7. Working roller; 8. Sliding sleeve; 9. Mounting seat; 10. Support plane; 11. Pull ring; 12. Stiffening plate; 13. Pad block. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0026] like Figures 1-4 As shown, this embodiment provides a tooling for improving the transfer efficiency of work rolls in a cold rolling mill, including a suspension beam 1. Vertical extension plates 2 are fixed to the upper left, lower left, upper right, and lower right corners of the bottom of the suspension beam. Two support members 3 are evenly distributed vertically on each vertical extension plate. The support members are slidably connected to the vertical extension plates and are connected to the vertical extension plates by locking screws 4. End-side limiting plates 5 are also fixedly connected to each vertical extension plate.
[0027] In this embodiment of the utility model, a suspension hanging hole 6 is fixedly provided on the top of the suspension beam.
[0028] In this embodiment of the utility model, each of the vertical extension plates is fixed with a sliding sleeve 8 having an axial direction of the working roller 7 and a radial direction thereof, and the support members are all coaxially inserted in the sliding sleeve.
[0029] In this embodiment of the utility model, the inner end of each support member is provided with a support plane 10 for supporting the mounting seat 9 at the end of the working roller, and the outer end of each support member is connected with a pull ring 11.
[0030] In this embodiment of the utility model, each of the sliding sleeves is provided with a mounting through hole on its periphery, and each of the support members is provided with an internal thread hole on its periphery. Each locking screw passes through the corresponding mounting through hole and is locked in the corresponding internal thread hole.
[0031] In this embodiment of the utility model, a triangular stiffening plate 12 is fixed between the sliding sleeve and the vertical extension plate.
[0032] In this embodiment of the invention, the four sets of support members at the top of the bottom of the suspension beam are on the same horizontal plane, and the four sets of support members at the bottom are on another horizontal plane.
[0033] In this embodiment of the utility model, the end-side limiting plate is L-shaped.
[0034] In this embodiment of the utility model, one side of the L-shaped end-side limiting plate is fixed to the inner end side of the corresponding vertical extension plate.
[0035] In this embodiment of the invention, the other side of the L-shaped end-side limiting plate is located on the inner side of the mounting seat at the end of the work roller, in order to limit excessive axial movement of the mounting seat at the end of the work roller.
[0036] In this embodiment of the invention, the working principle of the tooling for improving the transfer efficiency of the work rolls in a cold rolling mill is as follows:
[0037] The upper and lower work rolls are stacked vertically, with a pad 13 placed between the mounting seats of the upper and lower work rolls. This fixture, designed to improve the transfer efficiency of the cold rolling mill work rolls, is suspended and moved downwards towards the two work rolls until the two supports at the upper left corner are aligned with the mounting seats at the upper left corner of each work roll, the two supports at the lower left corner are aligned with the mounting seats at the lower left corner of each work roll, the two supports at the upper right corner are aligned with the mounting seats at the upper right corner of each work roll, and the two supports at the lower right corner are aligned with the mounting seats at the lower right corner of each work roll. Then, the locking screws are loosened, the supports are pushed so that their supporting planes are at the bottom of the corresponding mounting seats, and the locking screws are tightened. The fixture is then lifted upwards, allowing the two work rolls to be transported synchronously. The end-side limiting plates are used to restrict excessive axial movement of the mounting seats at the ends of the work rolls.
[0038] This tooling, which improves the transfer efficiency of the cold rolling mill work rolls, can lift both work rolls of the cold rolling mill at one time, namely the upper work roll and the lower work roll, so that the upper and lower work rolls can be lifted onto the cold rolling mill for installation at the same time, which significantly improves the transfer efficiency.
[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.
Claims
1. A tooling for improving the transfer efficiency of work rolls in a cold rolling mill, characterized in that: The system includes a suspension beam, and vertical extension plates are fixed to the upper left, lower left, upper right, and lower right corners of the bottom of the suspension beam. Two support members are evenly distributed vertically on each vertical extension plate. The support members are slidably connected to the vertical extension plate and are connected to the vertical extension plate with locking screws. End-side limiting plates are also fixedly connected to each vertical extension plate.
2. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 1, characterized in that: The suspension beam is fixed with a suspension hole at its top center.
3. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 1, characterized in that: Each of the vertical extension plates is fixed with a sliding sleeve whose axial direction is radial to that of the working roller, and the support members are all coaxially inserted in the sliding sleeve.
4. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 3, characterized in that: The inner end of each support member is provided with a support plane for supporting the mounting base of the work roller end, and the outer end of each support member is connected with a pull ring.
5. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 3, characterized in that: Each of the sliding sleeves has a mounting through hole on its periphery, and each of the support members has an internal thread hole on its periphery. Each locking screw passes through the corresponding mounting through hole and is locked into the corresponding internal thread hole.
6. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 3, characterized in that: A triangular stiffening plate is fixed between the sliding sleeve and the vertical extension plate.
7. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 1, characterized in that: The four sets of supports at the top of the suspension beam are on the same horizontal plane, and the four sets of supports at the bottom are on another horizontal plane.
8. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 1, characterized in that: The end-side limiting plate is L-shaped.
9. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 8, characterized in that: One side of the L-shaped end-side limiting plate is fixed to the inner end of the corresponding vertical extension plate.
10. The tooling for improving the transfer efficiency of work rolls in a cold rolling mill according to claim 9, characterized in that: The other side of the L-shaped end-side limiting plate is located on the inner side of the mounting seat at the end of the work roll, in order to limit excessive axial movement of the mounting seat at the end of the work roll.