Prestressed steel wire winding type heavy rolling mill stand

Abstract

The utility model discloses a prestressed steel wire winding type heavy rolling mill stand and belongs to the technical field of metal machining tools. The machine comprises an upper machine frame and a lower machine frame, and is characterized in that the upper machine frame and the lower machine frame are both of a U-shaped structure, the upper machine frame and the lower machine frame are assembled to form a rectangular whole machine frame, the interiors of the upper machine frame and the lower machine frame are both of a door-shaped structure, grooves are formed in the outer circle of the upper machine frame and the outer circle of the lower machine frame, and the upper machine frame and the lower machine frame are arranged in the grooves. After the upper machine frame and the lower machine frame are assembled, steel wires are wound in the grooves to tightly wind the upper machine frame and the lower machine frame, and fixing supports with holes are arranged on the two outer sides of the lower machine frame. According to the utility model, the strength and rigidity of the rack can be increased, the weight of a single part is reduced, and the rack is easier to process, manufacture, install, transport and debug.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal processing tooling, and particularly relates to a prestressed wire-wound heavy mill housing. Background Art

[0002] The mill housing is a mill component used to install all components in the working stand such as rolls, roll bearings, roll adjusting devices and guiding devices, and to bear all rolling forces. Therefore, the housing is one of the most important components in the mill, and has relatively high requirements for its strength and stiffness.

[0003] At present, mill housings are divided into integral and split structures. The integral housing structure has relatively high strength and stiffness. For a heavy mill housing to bear large loads, the weight of a single part of the mill housing is too large, resulting in huge risks in the manufacturing, installation, transportation and commissioning processes. The split housing is combined into a housing through tension bolts on the upper and lower beams. Although this structure reduces the size and weight of a single part of the mill housing and reduces the manufacturing difficulty, the strength and stiffness of the housing are relatively poor. Thus, neither the existing integral structure nor the split structure housing can meet the requirements of heavy mills. Summary of the Utility Model

[0004] The utility model aims at the above problems, makes up for the deficiencies of the prior art, and provides a prestressed wire-wound heavy mill housing; the utility model can increase the strength and stiffness of the housing, reduce the weight of a single part, and make it easier to process, manufacture, install, transport and commission.

[0005] To achieve the above object, the utility model adopts the following technical solutions.

[0006] The utility model provides a prestressed wire-wound heavy mill housing, including an upper housing and a lower housing, characterized in that both the upper housing and the lower housing are U-shaped structures, the upper housing and the lower housing form a rectangular integral housing after being assembled, the interiors of both the upper housing and the lower housing are portal structures, grooves are provided on the outer circles of both the upper housing and the lower housing, after the upper housing and the lower housing are assembled, wires are wound in the grooves to tightly wind the upper housing and the lower housing, and fixed supports with holes are provided on both outer sides of the lower housing.

[0007] Further, the wires are flat wires, and the material of the wires is alloy steel.

[0008] Further, both the upper housing and the lower housing are cast steel parts.

[0009] Further, a protective plate is jointly provided on the outer circles of the upper housing and the lower housing outside the wires, and the protective plate is used to protect the wires.

[0010] Advantages of the present utility model

[0011] The present utility model greatly improves the strength and stiffness of the frame, enabling it to have a strong bearing capacity and a long fatigue life; adopting a split structure reduces the weight of a single part, making it easier to process, manufacture, install, transport, and debug; the size structure is compact, and the self-weight is significantly reduced, thereby reducing the manufacturing cost and shortening the manufacturing cycle. Description of the drawings

[0012] In order to make the technical problems, technical solutions, and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0013] Figure 1 It is a schematic structural diagram of the present utility model in the initial state.

[0014] Reference numerals in the figure: 1 is the upper frame, 2 is the lower frame, 3 is the groove, and 4 is the fixed support. Specific embodiments

[0015] As shown in the drawings, the present embodiment provides a prestressed wire-wound heavy-duty rolling mill frame, including an upper frame 1 and a lower frame 2. Both the upper frame 1 and the lower frame 2 are cast steel parts, and both the upper frame 1 and the lower frame 2 are U-shaped structures. After the upper frame 1 and the lower frame 2 are assembled, they form a rectangular integral frame for installing rolls, roll bearings, roll adjusting devices, and guiding devices.

[0016] The upper and lower ends of the frame mainly bear loads, and the left and right ends play the roles of installation and guiding. Adopting a split structure reduces the weight of a single part, making it easy to process, manufacture, install, transport, and debug.

[0017] The inner parts of both the upper frame 1 and the lower frame 2 are portal structures. Grooves 3 are provided on the outer circles of both the upper frame 1 and the lower frame 2. After the upper frame 1 and the lower frame 2 are assembled, wires (not shown in the figure) are wound in the grooves 3 to tightly wind the upper frame 1 and the lower frame 2. The wires are flat wires, and the material of the wires is alloy steel. Winding flat wires on the outer circle grooves 3 of the heavy-duty frame is equivalent to applying pressure to the outer circle of the frame, increasing the strength and stiffness of the frame and ensuring the overall stability of the frame.

[0018] Fixed supports 4 with holes are provided on both outer sides of the lower frame for fixedly installing the entire frame on the foundation.

[0019] A protective plate (not shown in the figure) is jointly provided on the outer circles of the upper frame 1 and the lower frame 2 outside the wires. The protective plate is used to protect the wires and prevent the wires from being damaged during use.

[0020] It is understandable that the above specific description of the present utility model is only for explaining the present utility model and is not limited to the technical solutions described in the embodiments of the present utility model. Those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirements are met, they are all within the protection scope of the present utility model.

Claims

1. A prestressed steel wire winding heavy-duty rolling mill frame, comprising an upper frame (1) and a lower frame (2), characterized in that: The upper frame (1) and the lower frame (2) are both U-shaped structures. When the upper frame (1) and the lower frame (2) are assembled, they form a rectangular integral frame. The interiors of the upper frame (1) and the lower frame (2) are both door-shaped structures. Grooves (3) are provided on the outer circles of the upper frame (1) and the lower frame (2). After the upper frame (1) and the lower frame (2) are assembled, a steel wire is wound in the groove (3) to tighten the upper frame (1) and the lower frame (2). Fixed supports (4) with holes are provided on both outer sides of the lower frame (2).

2. The prestressed steel wire winding heavy rolling mill frame according to claim 1, characterized in that: The steel wire is a flat steel wire, and the material of the steel wire is alloy steel.

3. The prestressed steel wire winding heavy rolling mill frame according to claim 1, characterized in that: The upper frame (1) and the lower frame (2) are both cast steel parts.

4. The prestressed steel wire winding heavy rolling mill frame according to claim 1, characterized in that: A protective plate is commonly provided on the outer circumference of the upper frame (1) and the lower frame (2) on the outer side of the steel wire, and the protective plate is used to protect the steel wire.

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