A high speed wire rod reducing mill set roll ring protection cap

Abstract

The utility model discloses a high -speed wire rod reducing sizing unit roller ring protection cap, including the cap body, the cap body inside is equipped with the assembly cavity, the cap body includes the taper sleeve part, the taper sleeve part bottom is connected with the roller ring part, be provided with the connecting structure between the taper sleeve part and the roller ring part, the connecting structure includes the taper sleeve part bottom edge place even set up and butt the teeth, the roller ring part top edge place even set up and butt the groove, butt the teeth and butt the groove between the adaptation, the roller ring part inner wall edge place is equipped with the recess, the recess inside is fixed with the sealing ring, butt the teeth and butt the groove constitute the sectional type connection, fundamentally solved the traditional integral type protection cap disassembly inconvenient problem: when installing can be divided into two sections gradually and suit, need not forcibly align the whole, when disassembling can separate two sections first again respectively take down, effectively avoid integral type protection cap disassembly process, because with the taper sleeve, the roller ring forms the excessive interference nesting effect and produces the disassembly resistance too big.

Description

Technical Field

[0001] This utility model belongs to the technical field of roller ring accessories for reducing and sizing mills, specifically relating to a protective cap for roller rings of high-speed wire rod reducing and sizing mills. Background Technology

[0002] The reducing and sizing mill is one of the core pieces of equipment in Morgan's high-speed wire rod mill. Its main function is to serve as the final rolling tool, precisely shaping the finished product from the finishing mill to achieve the required dimensions and precision. The finishing mill of a high-speed wire rod mill is typically 7-8 meters long, and the reducing and sizing mill usually consists of four stands. It employs a 45° top-to-bottom arrangement and a collective drive system. The transmission ratio between the cone box and the roll box ensures continuous rolling, achieving micro-tension rolling, reducing steel accumulation accidents, and ensuring uniformity of product dimensions throughout the strip.

[0003] Rolling mill tools typically use powder metallurgy tungsten carbide roll rings, with outer diameters ranging from 150mm to 230mm, possessing high hardness and wear resistance. The roll ring is fitted onto the roll shaft in the roll box via a tapered sleeve. To prevent contamination of the roll ring, tapered sleeve, and roll shaft by guiding cooling water and other foreign matter, a protective sleeve is generally required. However, the existing protective sleeve's overall structure presents significant challenges during disassembly and assembly due to the interference fit between the sleeve and the tapered sleeve / roll ring, resulting in excessive resistance and inconvenience. Furthermore, insufficient sealing at the tail end allows contaminants to easily penetrate, accelerating equipment wear, increasing operator workload, and impacting mill operating rates. Therefore, there is an urgent need for a roll ring protective cap that facilitates safe and rapid disassembly and assembly while offering excellent sealing performance to address these issues. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a protective cap for a roller ring of a high-speed wire rod reducing and sizing mill, comprising a cap body, wherein an assembly cavity is provided inside the cap body, the cap body includes a conical sleeve portion, a roller ring portion is connected to the bottom of the conical sleeve portion, a connecting structure is provided between the conical sleeve portion and the roller ring portion, the connecting structure includes evenly spaced butt teeth at the bottom edge of the conical sleeve portion, evenly spaced butt grooves at the top edge of the roller ring portion, the butt teeth and butt grooves being compatible with each other, and an embedded groove is provided at the inner wall edge of the roller ring portion, wherein a sealing ring is fixed inside the embedded groove.

[0005] As a preferred embodiment of this utility model, the outer contour of the cap body and the shape of the internal assembly cavity are consistent.

[0006] As a preferred embodiment of this utility model, the tapered sleeve and the roller ring are respectively adapted to the tapered sleeve and roller ring of the sizing and reducing unit.

[0007] As a preferred technical solution of this utility model, the cap body has a nesting opening at the bottom end of the conical sleeve, the groove is opened on the inner wall of the nesting opening, and the cap body has a through hole at the center of the top end of the roller ring.

[0008] As a preferred technical solution of this utility model, the top cross-section of the through hole at the top of the roller ring is circular and the bottom cross-section is square, and the square cross-section of the through hole is adapted to the flat end of the roller shaft of the sizing unit.

[0009] As a preferred embodiment of this utility model, the cone sleeve and the roller ring are both made of 1Cr13 or 2Cr13.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) The segmented connection formed by the mating teeth and mating groove of this utility model fundamentally solves the problem of inconvenient disassembly and assembly of traditional integral protective caps: during installation, the two segments can be gradually fitted together without the need for forced alignment of the whole; during disassembly, the two segments can be separated first and then removed separately, effectively avoiding the excessive disassembly and assembly resistance caused by the interference nesting effect with the cone sleeve and roller ring during the disassembly and assembly of the integral protective cap, thus fundamentally solving the problem of difficult disassembly and assembly of the traditional integral structure. At the same time, the segmented design makes the weight of a single segment component lighter than that of the traditional integral protective cap, and operators can easily install it without the aid of auxiliary tools; and the mating teeth and mating grooves do not require additional fasteners, and only manual alignment and fitting are required to complete the splicing, significantly reducing the physical exertion and complexity of the operation.

[0012] (2) The sealing ring at the nesting opening forms a reliable elastic seal, which can reduce the intrusion of foreign objects such as guide cooling water and iron oxide scale, avoid wear and corrosion of the mating surface of the tapered sleeve, roller ring and roller shaft caused by foreign objects, extend the service life of the tapered sleeve and roller ring, and reduce equipment maintenance costs. On the other hand, the mating teeth and mating grooves not only realize segmented connection, but also strengthen the circumferential fixation of the tapered sleeve and roller ring. With the radial limit of the through hole and the flat head of the roller shaft, it can effectively resist the component displacement caused by rolling vibration, ensure that the protective cap always completely covers the core area, and the protection effect is stable and reliable. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a schematic diagram of the assembled structure of this utility model;

[0017] In the diagram: 1. Assembly cavity; 2. Tapered sleeve; 3. Roller ring; 4. Butt joint tooth; 5. Butt joint groove; 6. Nesting opening; 7. Through hole; 8. Embedded groove; 9. Sealing ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example

[0020] Please see Figure 1-3 The present invention provides the following technical solution: a protective cap for a roller ring of a high-speed wire rod reducing and sizing unit, comprising a cap body, an assembly cavity 1 inside the cap body, a conical sleeve 2, a roller ring 3 connected to the bottom of the conical sleeve 2, a connecting structure between the conical sleeve 2 and the roller ring 3, the connecting structure comprising evenly spaced butt teeth 4 at the bottom edge of the conical sleeve 2, evenly spaced butt grooves 5 at the top edge of the roller ring 3, the butt teeth 4 and the butt grooves 5 being compatible with each other, and an embedded groove 8 at the inner wall edge of the roller ring 3, with a sealing ring 9 fixed inside the embedded groove 8.

[0021] In order to ensure that the covering shape of the internal assembly cavity 1 for components such as the cone sleeve and roller ring is consistent with the external contour, and to improve structural stability and processing convenience, in this embodiment, as a preferred technical solution of the present invention, the external contour of the cap body and the shape of the internal assembly cavity 1 are consistent.

[0022] In order to ensure that the tapered sleeve 2 and the roller ring 3 are precisely fitted with the tapered sleeve and roller ring of the reducing and sizing unit, and to ensure that the protective cap can completely cover the core mating area to be protected, thereby improving the pertinence and effectiveness of the protection, in this embodiment, as a preferred technical solution of the present invention, the tapered sleeve 2 and the roller ring 3 are adapted to the tapered sleeve and roller ring of the reducing and sizing unit, respectively.

[0023] In order to achieve the fitting connection between the conical sleeve 2 and the conical sleeve through the nesting opening 6, the groove 8 provides an installation base for the sealing ring 9 to enhance the seal, and the through hole 7 enables the roller ring 3 and the roller shaft to pass through and fit together, providing structural support for the assembly positioning and sealing protection of the protective cap, in this embodiment, as a preferred technical solution of the present invention, the cap body is provided with a nesting opening 6 at the bottom end of the conical sleeve 2, the groove 8 is provided on the inner wall of the nesting opening 6, and the cap body is provided with a through hole 7 at the center of the top end of the roller ring 3.

[0024] In order to achieve radial positioning by adapting the square cross-section to the shape of the roller flat head, restrict the radial movement of the protective cap along the roller, and at the same time transmit torque through shape matching to assist in the disassembly and assembly of the protective cap, thereby improving assembly stability and ease of operation, in this embodiment, as a preferred technical solution of the present invention, the top cross-section of the through hole 7 at the top of the roller ring 3 is circular and the bottom cross-section is square, and the square cross-section of the through hole 7 is adapted to the flat head of the roller of the sizing unit.

[0025] In order to improve the corrosion resistance, oxidation resistance and mechanical strength of the protective cap, so as to adapt to the harsh working conditions of high humidity, dust and vibration impact of the rolling mill and extend the service life of the protective cap itself, in this embodiment, as a preferred technical solution of the present invention, the cone sleeve part 2 and the roll ring part 3 are both made of 1Cr13 or 2Cr13.

[0026] In summary, the specific working principle of this utility model, based on the above-described technical solution, is as follows:

[0027] Assembly Positioning and Torque Transmission Mechanism: The segmented connection formed by the mating teeth 4 and the mating groove 5 fundamentally solves the problem of inconvenient assembly and disassembly of traditional integral protective caps. During installation, the two sections can be fitted together gradually without forcibly aligning the entire structure. During disassembly, the two sections can be separated first and then removed separately, effectively avoiding the excessive disassembly and assembly resistance caused by the interference fit effect with the cone sleeve and roller ring during the disassembly of the integral protective cap. This fundamentally solves the problem of difficult assembly and disassembly of traditional integral structures. Moreover, the mating teeth 4 and the mating groove 5 do not require additional fasteners; they can be assembled simply by manually aligning and fitting them, significantly reducing the physical exertion and complexity of the operation. At the same time, the two can effectively transmit torque by using bolts to tighten the cone sleeve 2 and the roller ring 3. This structure can also limit the radial movement of the protective cap along the roller shaft, ensuring the relative position stability of the protective cap with the roller shaft and roller ring after assembly, and avoiding the risk of protective cap displacement caused by rolling vibration.

[0028] Cone sleeve-roll ring encapsulation protection: As assembly progresses, the nesting opening 6 at the bottom of the cone sleeve 2 gradually fits along the outer wall of the cone sleeve and roll ring, so that the assembly cavity 1 inside the cap body forms a tight fit with the cone sleeve and roll ring of the reducing and sizing unit. Due to the structural compatibility between the cone sleeve 2 and the cone sleeve, and the roll ring 3 and the roll ring, and the fact that the outer contour of the cap body is consistent with the shape of the inner assembly cavity 1, the assembly cavity 1 can completely encapsulate the key mating area of ​​the cone sleeve and the roll ring, forming a physical protective barrier to isolate foreign objects such as guide cooling water, iron oxide scale, and dust from the rolling mill site.

[0029] Positioning and reinforcement of the connection structure: The mating teeth 4 at the bottom edge of the cone sleeve 2 and the mating groove 5 at the top edge of the roll ring 3 achieve precise engagement. This mating structure can strengthen the circumferential fixation and radial positioning of the two, avoid relative displacement between the cone sleeve 2 and the roll ring 3 caused by rolling vibration, ensure the integrity of the overall structure of the protective cap, and prevent the loss of the protective area due to local misalignment.

[0030] Sealing and Material Adaptation Mechanism: When the protective sleeve is fully fitted onto the tapered sleeve and the roll ring, the sealing ring 9 fixed in the groove 8 fits tightly against the outer wall of the roll ring, forming an elastic sealing structure that can prevent foreign objects from entering the core mating surface through the gap. At the same time, the tapered sleeve 2 and the roll ring 3 are made of 1Cr13 or 2Cr13 stainless steel, which has excellent corrosion resistance and mechanical strength and can adapt to the harsh working conditions of high humidity and dust in the rolling mill, avoiding corrosion failure of the protective cap itself. The protective cap has a wall thickness of 5mm and an inner diameter that is only 3mm larger than the outer diameter of the tapered sleeve. While ensuring structural strength to resist rolling impact, it minimizes its own weight, taking into account both durability and ease of operation.

[0031] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A protective cap for roller rings of a high-speed wire rod reducing and sizing mill, comprising a cap body, characterized in that: The cap body has an assembly cavity (1) inside. The cap body includes a conical sleeve (2). The bottom of the conical sleeve (2) is connected to a roller ring (3). A connection structure is provided between the conical sleeve (2) and the roller ring (3). The connection structure includes a butt joint tooth (4) evenly provided at the bottom edge of the conical sleeve (2). A butt joint groove (5) is evenly provided at the top edge of the roller ring (3). The butt joint tooth (4) and the butt joint groove (5) are compatible with each other. A groove (8) is provided at the inner wall edge of the roller ring (3). A sealing ring (9) is fixed inside the groove (8).

2. The roller ring protection cap for a high-speed wire rod reducing and sizing mill according to claim 1, characterized in that: The outer contour of the cap body and the shape of the internal assembly cavity (1) are consistent.

3. The roller ring protection cap for a high-speed wire rod reducing and sizing mill according to claim 1, characterized in that: The tapered sleeve (2) and the roller ring (3) are respectively adapted to the tapered sleeve and roller ring of the sizing and reducing unit.

4. The roller ring protection cap for a high-speed wire rod reducing and sizing mill according to claim 3, characterized in that: The cap body has a nesting opening (6) at the bottom of the conical sleeve (2), the groove (8) is opened on the inner wall of the nesting opening (6), and the cap body has a through hole (7) at the center of the top of the roller ring (3).

5. A roller ring protective cap for a high-speed wire rod reducing and sizing mill according to claim 1, characterized in that: The top cross-section of the through hole (7) at the top of the roller ring (3) is circular, and the bottom cross-section is square. The square cross-section of the through hole (7) is compatible with the flat end of the roller shaft of the sizing unit.

6. The roller ring protection cap for a high-speed wire rod reducing and sizing mill according to claim 1, characterized in that: The cone sleeve (2) and the roller ring (3) are both made of 1Cr13 or 2Cr13.

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