A mounting tool for high-speed rolling mill lock nuts

Abstract

The utility model relates to a kind of installation tools of high-speed rolling mill locking nut, belong to metallurgical industry high-speed rolling mill locking nut special tool technical field.Techinical scheme is: containing circular ring sleeve (1), inner chuck (2) and rotating small arm (3), the inner diameter of circular ring sleeve (1) is matched with the outer diameter of high-speed rolling mill locking nut, the inner wall of circular ring sleeve (1) is equipped with several evenly arranged inner chucks (2), the outer wall of circular ring sleeve (1) is equipped with oppositely arranged rotating small arm (3).The utility model has the beneficial effects that: simple structure, the installation and disassembly of high-speed rolling mill locking nut are facilitated, in the process of tightening or loosening high-speed rolling mill locking nut, stress balance, evenly, circular ring sleeve tightly buckles high-speed rolling mill locking nut, small interfacing gap, holds tightly, control precision is high, can sensitively perceive the tightening force of nut;The length of rotating small arm can be made according to the operation space on site, and the operation flexibility is high, and labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to an installation tool for a high-speed rolling mill locking nut, belonging to the technical field of special tools for high-speed rolling mill locking nuts in the metallurgical industry. Background Technology

[0002] High-speed rolling mills, especially those producing small-diameter bars or high-strength wire, require high assembly precision. Locking nuts are crucial components in high-speed rolling mills, as shown in the attached... Figure 1 , 2 As shown, the locking nut has six open slots evenly distributed every 60° on its outer circumference, which serve as force points when tightened. During high-speed rolling mill assembly, since there are no dedicated installation tools for locking nuts, crescent wrenches are typically used. The advantage of this type of wrench is its ease of procurement and lack of customization. However, it also has disadvantages: being an open-end wrench, it is prone to deformation when tightening the nut due to variations in wrench size, material hardness, and strength, making it difficult to perceive and precisely control the tightening force; after prolonged use, the wrench's strength decreases, wear at the contact points increases, and the wrench clips become less effective at locking (holding) the nut, easily slipping out and affecting performance; furthermore, the wrench arm is relatively long, requiring a large operating space, which is unsuitable for the confined space of high-speed rolling mill workstations. Utility Model Content

[0003] The purpose of this utility model is to provide an installation tool for locking nuts on high-speed rolling mills, which facilitates the installation and disassembly of locking nuts on high-speed rolling mills, improves installation accuracy and flexibility, reduces the labor intensity of workers, and solves the problems existing in the background art.

[0004] The technical solution of this utility model is:

[0005] An installation tool for a high-speed rolling mill locking nut includes a circular ferrule, inner clamps, and a rotating arm. The inner diameter of the circular ferrule matches the outer diameter of the high-speed rolling mill locking nut. The inner wall of the circular ferrule is provided with a plurality of evenly arranged inner clamps, and the outer wall of the circular ferrule is provided with oppositely arranged rotating arms.

[0006] The outer wall of the circular retainer has four rotating small arms arranged opposite each other, and the four rotating small arms are evenly arranged along the circumference of the circular retainer.

[0007] The rotating forearm and the circular retainer are integrated into one structure.

[0008] The inner clamps are evenly arranged on the inner wall of the circular clamp, along the circumference of the circular clamp.

[0009] The inner clamps evenly arranged on the inner wall of the annular ferrule are rectangular protrusions that match the open slots in the circumferential direction of the high-speed rolling mill locking nut. The number of protrusions is the same as the number of open slots in the circumferential direction of the high-speed rolling mill locking nut.

[0010] The beneficial effects of this utility model are: the structure is simple and ingenious, and the force is balanced and uniform during the tightening or loosening of the high-speed rolling mill locking nut. The circular ferrule tightly holds the high-speed rolling mill locking nut with a small gap, a large clamping force, and high control precision, and can sensitively detect the tightening force of the nut. In addition, the length of the rotating arm can be made according to the on-site working space. The rotating arm can be operated manually or by striking with a small hammer. The rotating arm can be rotated on both sides along the axis perpendicular to the tool plane, which provides high operational flexibility. Attached Figure Description

[0011] Figure 1 This is a front view of the lock nut for a high-speed rolling mill.

[0012] Figure 2 for Figure 1 A sectional view;

[0013] Figure 3 This is the front view of the present invention;

[0014] Figure 4 This is the left view of the present invention;

[0015] Figure 5 for Figure 3 AA section view;

[0016] In the diagram: 1. Circular retainer, 2. Inner retainer head, 3. Rotating forearm. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and examples.

[0018] See attached document Figure 1-5 An installation tool for a high-speed rolling mill locking nut includes a circular ring sleeve 1, an inner clamp 2, and a rotating arm 3. The inner diameter of the circular ring sleeve 1 matches the outer diameter of the high-speed rolling mill locking nut. The inner wall of the circular ring sleeve 1 is provided with a number of evenly arranged inner clamps 2, and the outer wall of the circular ring sleeve 1 is provided with relatively arranged rotating arms 3.

[0019] In this embodiment, refer to the appendix Figure 1 , 2 The high-speed rolling mill locking nut has six open slots evenly distributed every 60° on the outer circumference of the circumference, which serve as stress points when tightened.

[0020] See attached document Figure 3 , 45. The circular retaining sleeve 1, as the main structural component of the entire special installation tool, has six inner retaining heads 2 on its inner side, distributed every 60°. Their position and size correspond to and match the open slots on the high-speed rolling mill locking nut. During operation, they are used to engage with the six open slots on the circumference of the locking nut, causing the nut to rotate. The outer wall of the circular retaining sleeve 1 has four rotating arms 3, distributed every 90° vertically and horizontally, serving as wrench arms. Manual rotation is possible. If greater force is required, a small hammer (usually a small hammer with a rubber outer layer) can be used to strike the rotating arms 3, using the striking force to rotate the circular retaining sleeve, thereby rotating the locking nut to loosen or tighten it. If necessary, an extension sleeve can be attached to the rotating arms 3 for tightening, increasing the force applied.

[0021] This installation tool is cut and processed from a single sheet of steel, making it a complete unit with high hardness and strength. Unlike welded connections, it will not crack or break during use. Furthermore, it undergoes annealing heat treatment to ensure complete stress release and prevent deformation during use.

[0022] Surface roughness requirements: The inner surface roughness Ra of the circular ferrule 1 should be ≤3.2μm, and the outer surface roughness can be appropriately relaxed to Ra≤6.4μm. If necessary, the inner and outer surfaces of the tool should be ground and polished to meet the roughness requirements, remove all sharp corners, ensure that the performance is not affected, and prevent scratching the surface of the equipment. Materials that can be used include AISI4340, etc.

Claims

1. A tool for installing a high speed rolling mill lock nut, characterised in that: It includes a circular ferrule (1), an inner ferrule (2) and a rotating arm (3). The inner diameter of the circular ferrule (1) matches the outer diameter of the high-speed rolling mill locking nut. The inner wall of the circular ferrule (1) is provided with several evenly arranged inner ferrules (2), and the outer wall of the circular ferrule (1) is provided with relatively arranged rotating arms (3).

2. The installation tool for a locking nut of a high-speed rolling mill according to claim 1, characterized in that: The four rotating arms (3) arranged opposite each other on the outer wall of the circular sleeve (1) are evenly arranged along the circumference of the circular sleeve (1).

3. The installation tool for a high-speed rolling mill locking nut according to claim 1 or 2, characterized in that: The rotating arm (3) and the circular sleeve (1) are integrated into one structure.

4. The installation tool for a high-speed rolling mill locking nut according to claim 1, characterized in that: The inner clips (2) are evenly arranged on the inner wall of the circular sleeve (1) along the circumferential direction of the circular sleeve (1).

5. The installation tool for a high-speed rolling mill locking nut according to claim 1, characterized in that: The inner clamps (2) evenly arranged on the inner wall of the circular clamp sleeve (1) are rectangular protrusions that match the open grooves in the circumferential direction of the high-speed rolling mill locking nut. The number of protrusions is the same as the number of open grooves in the circumferential direction of the high-speed rolling mill locking nut.

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