Roll-breaking-prevention mounting-free water retaining ring integral type roller
By designing an integral roll with anti-breaking roller without water barrier ring and adopting a water barrier platform with rounded corner transition structure, the problem of easy breakage of the roller neck is solved, and the effect of reducing the risk of fracture and production costs is achieved.
Patent Information
- Application Number
- CN202421840624.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The roll neck of the old-style rolling mill is prone to breakage in the water-retaining ring, resulting in frequent roll neck breakage accidents during the rolling process, affecting normal operation and causing economic losses.
A waterproof ring integral roll is designed with an integrated roll without breaking roller, adopting an integrated design, the water barrier table is integrated with the roll body, and the top and root of the water barrier table are rounded transition structures to eliminate sharp corners, increase the roller neck diameter and reduce stress concentration.
By eliminating stress concentration, the risk of roll neck fracture is reduced, production costs are reduced and process flow is simplified.
Smart Images
Figure CN223171622U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling rolls, in particular to an integral rolling roll that prevents roll breakage and eliminates the need for installing a water retaining ring. Background Art
[0002] Some old rolling mills design a step with a 2 mm diameter drop on the inner side of the roll neck sealing table 2 for assembling the water retaining ring 4. The root of the step at the roll neck part 3 where the water retaining ring is assembled has a sharp corner structure. Due to the long and slender roll neck, roll neck breakage accidents are likely to occur at the root of the water retaining step during the rolling process. A typical roll structure is as Figure 1 shown.
[0003] This structure is the design of an old rolling mill. As Figure 2 、 3 shown, when assembling, the root of the roll neck at the water retaining ring part 3 has a sharp corner structure. The sealing table 2 contacts the sealing ring, and the main roll neck 1 and the sealing table 2 are designed with an inclined surface structure. Through mechanical calculation, it can be known that during the rolling process, the root of the water retaining ring step is the part with the maximum stress, and this position is a dangerous section. During use, if the rolling force control is slightly careless, roll neck breakage accidents will occur, resulting in premature scrapping of the rolling roll, affecting the normal operation of rolling, and causing greater economic losses. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide an integral roll structure that eliminates the need for installing a water retaining ring, can eliminate the original maximum stress part, and increases the fillet at the root of the sealing table, greatly reducing the stress concentration during use and significantly reducing the risk of roll neck breakage of the rolling roll.
[0005] To solve the above technical problems, the technical solution adopted by the utility model is:
[0006] An integral rolling roll that prevents roll breakage and eliminates the need for installing a water retaining ring, including a roll body, where the roll body includes a roll body, a connecting part, a sealing table, and a main roll neck that are integrally arranged on both sides of the roll body in sequence; a water retaining table is arranged at the end of the sealing table close to the connecting part; the water retaining table and the roll body are integrally designed; the transition surface from the top of the water retaining table to the connecting part is a fillet transition structure, and the transition surface from the root of the water retaining table to the sealing table is a fillet transition structure.
[0007] A further improvement of the technical solution of the utility model is that the transition surface from the top of the water retaining table to the connecting part is an R5 fillet transition structure.
[0008] A further improvement of the technical solution of the utility model is that the transition surface from the root of the water retaining table to the sealing table is an R4 fillet transition structure.
[0009] Due to adopting the above technical solution, the technical progress obtained by the utility model is:
[0010] 1. After the modular structure of the present utility model is changed to an integral structure, the original structure of the water retaining platform step and the water retaining ring is designed as a whole, eliminating the sharp corner structure at the root of the original water retaining platform step. The water retaining ring is designed as a part of the roll body, increasing the roll neck diameter and enhancing the roll neck strength. A fillet structure is designed at the root of the outer sealing step, and at the same time, the stress concentration at the root of the sealing step during the rolling process is reduced, greatly reducing the risk of roll neck fracture of the roll.
[0011] 2. The present utility model changes the original modular structure to an integral structure without changing the size of the roll after the original assembly, eliminating the need to manufacture the water retaining ring and assemble it, reducing the technological process and production cost. Description of the Drawings
[0012] Figure 1 is a schematic diagram of a typical roll structure;
[0013] Figure 2 is a schematic diagram of the water retaining ring assembly;
[0014] Figure 3 is a schematic diagram of the water retaining ring structure;
[0015] Figure 4 is a schematic diagram of the integral roll without a water retaining ring in the present utility model;
[0016] Among them, 1. Main spindle diameter, 2. Sealing step, 3. Water retaining ring part, 4. Water retaining ring, 5. Water retaining platform. Detailed Embodiment
[0017] The following further describes the present utility model in detail with reference to the drawings and embodiments:
[0018] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.
[0019] An anti-breakage roll with an integral water shield that eliminates the need for a water shield ring, comprising a roll body, wherein the roll body includes an integrally provided roll body, connecting parts, a sealing table 2 and a spindle diameter 1 sequentially arranged on both sides of the roll body; a water retaining table 5 is arranged at the end of the sealing table 2 close to the connecting part; the water retaining table 5 is integrally designed with the roll body; the top of the water retaining table 5 has a fillet transition structure with a radius of R5 to the connecting part transition surface, and the root of the water retaining table 5 has a fillet transition structure with a radius of R4 to the sealing table 2 transition surface.
[0020] As Figure 4 shown, the original structure inside the water retaining table is a straight table structure. After being changed to an integral structure, it is designed as a fillet transition structure with a radius of R5. This part is suspended after assembly and does not affect the assembly of the sealing ring and bearing box; the root of the sealing table on the outside of the water retaining table is designed as a fillet structure with a radius of R4, which does not affect the assembly of the sealing ring; the diameter and width of the water retaining table 5 are designed according to the water shield ring structure of the original combined structure.
[0021] The utility model processes the roll according to the integral structure of eliminating the need for a water retaining table, and there is no need to manufacture and assemble a water shield ring anymore. After the roll processing is completed, the sealing ring and bearing box can be normally assembled to complete the assembly.
Claims
1. An integral roll for preventing roll breakage and eliminating the need for installing a water baffle ring, comprising a roll body, wherein the roll body includes a roll body integrally provided, connecting parts, sealing platforms (2) and spindle diameters (1) sequentially arranged on both sides of the roll body; characterized in that: A water retaining table (5) is arranged at the end of the sealing table (2) close to the connecting part; the water retaining table (5) is integrally designed with the roll body; the transition surface of the top of the water retaining table (5) to the connecting part is a fillet transition structure, and the transition surface of the root of the water retaining table (5) to the sealing table (2) is a fillet transition structure.
2. The integral roll for preventing roll breakage and dispensing with installation of a water retaining ring according to claim 1, wherein: The transition surface of the top of the water retaining table (5) to the connecting part is an R5 fillet transition structure.
3. The integral roll for preventing roll breakage and dispensing with water retaining ring according to claim 1, wherein: The transition surface of the root of the water retaining table (5) to the sealing table (2) is an R4 fillet transition structure.