Low temperature high rod finish rolling mill roller box

Abstract

This utility model belongs to the technical field of finishing mill roll boxes, specifically a low-temperature high-strength bar finishing mill roll box, including a roll box body. Lifting auxiliary components are fixed to both sides of the outer shell of the roll box body. The lifting auxiliary components include a mounting plate, a support cylinder, and mounting bolts. The edge of the mounting plate is fixedly connected to the outer wall of the roll box body via mounting bolts. The support cylinder is integrally formed in the middle of the mounting plate and extends outward. This utility model utilizes a support cylinder with an inner diameter adapted to standard lifting steel pipes for quick connection with mechanical lifting tools. The outer wall of the support cylinder has an annular groove to support lifting with ropes, chains, and other lifting tools. The top surface of the annular groove has a through groove that communicates with the support cylinder, supporting hook-type lifting. It is compatible with various lifting tools, eliminating the need for specialized lifting equipment and improving the convenience of lifting operations. The mounting plate has a large contact area with the roll box, and the load is evenly distributed through bolts, which better disperses stress compared to traditional hook structures.

Description

Technical Field

[0001] This utility model belongs to the technical field of finishing mill roll boxes, specifically relating to a low-temperature high-bar finishing mill roll box. Background Technology

[0002] A low-temperature high-precision bar mill is a device that uses temperature control technology to roll high-precision bars. Its roll box structure can be found in the attached diagram. Figure 1 As a core component of the rolling mill, it includes rolls, bearings, sealing devices and lubrication systems, and directly participates in metal deformation and bears huge rolling forces.

[0003] Due to the significant weight of rolling mill roll boxes, current transportation methods primarily utilize lifting equipment. However, the current lifting and transportation processes for low-temperature high-strength bar mill roll boxes generally suffer from the following technical challenges: Existing roll boxes often employ small hooks or welded lifting lugs as lifting points, resulting in small contact areas and significant stress concentration. Long-term use can easily lead to hook deformation, weld cracking, or even breakage, posing safety hazards. Furthermore, the hook design is limited, only compatible with specific lifting tools (such as wire ropes or chains), and cannot accommodate different lifting equipment (such as steel pipe plug-in lifting tools or hook-type tools), lacking flexibility and requiring specialized lifting equipment, thus impacting operational efficiency. Additionally, traditional lifting points are typically localized by welding or bolting, failing to adequately distribute the load. During lifting, the roll box shell is prone to deformation due to excessive localized stress, affecting equipment accuracy. Therefore, there is an urgent need for a low-temperature high-strength bar mill roll box that facilitates stable lifting and is compatible with various lifting tools. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a low-temperature high-strength bar finishing mill roll box, which features convenient hoisting and strong adaptability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roll box for a low-temperature high-strength bar mill, comprising a roll box body, with lifting auxiliary components fixed on both sides of the outer shell of the roll box body. The lifting auxiliary components include a mounting plate, a support cylinder, and mounting bolts. The edge of the mounting plate is fixedly connected to the outer wall of the roll box body by the mounting bolts. The support cylinder is integrally formed in the middle of the mounting plate and extends outward. An annular groove is provided in the middle of the outer wall of the support cylinder for external hoisting rope binding and lifting. A through groove is provided in the middle of the top surface of the annular groove, which connects through the interior of the support cylinder for external hook lifting.

[0006] As a preferred technical solution of the low-temperature high-bar finishing mill roll box of this utility model, the outer shell of the roll box body is integrally formed with an auxiliary baffle, which is located above the mounting plate.

[0007] As a preferred technical solution for a low-temperature high-strength bar mill roll box according to this utility model, the thickness of the auxiliary baffle is greater than that of the mounting plate to enhance structural stability.

[0008] As a preferred technical solution for a low-temperature high-strength bar mill roll box according to this utility model, the gap between the auxiliary baffle and the mounting plate is smaller than the thickness of the mounting plate, ensuring the fixing strength of the mounting plate.

[0009] As a preferred technical solution of the roll box for a low-temperature high-strength bar mill according to this utility model, the cross-section of the annular groove is U-shaped to prevent the lifting rope from slipping.

[0010] As a preferred technical solution of the low-temperature high-bar finishing mill roll box of this utility model, the mounting plate is provided with mounting holes on the side, and the mounting bolts pass through the mounting holes.

[0011] As a preferred technical solution for a low-temperature high-bar finishing mill roll box according to this utility model, the hoisting auxiliary components are provided in two groups of two, located on both sides of the roll box body, and the support cylinder axes of each group of hoisting auxiliary components are parallel to ensure balanced force during hoisting.

[0012] As a preferred technical solution for a low-temperature high-bar finishing mill roll box according to this utility model, the inner diameter of the support cylinder is adapted to the steel pipe insertion of standard hoisting tools to achieve rapid docking.

[0013] As a preferred technical solution for a low-temperature high-strength bar mill roll box according to this utility model, the mounting plate and the support cylinder are made of high-strength alloy steel.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) This solution uses a support cylinder with an inner diameter that is compatible with standard hoisting steel pipes for quick connection with mechanical lifting tools. The outer wall of the support cylinder is provided with an annular groove to support hoisting tools such as ropes and chains. The top surface of the annular groove is provided with a through groove that is connected to the support cylinder to support hook-type tools for hoisting. By integrating multiple hoisting structures through the support cylinder, it is compatible with multiple hoisting tools, eliminating the need for special lifting tools and improving the convenience of hoisting operations. (2) This scheme uses an installation plate integrally formed with the support cylinder to fix the installation plate to the outer shell of the roller box. The installation plate has a large contact area with the roller box, and the load is evenly distributed by bolts. Compared with the traditional hook structure, it can better disperse stress, enhance overall rigidity, and improve the stability of hoisting and transportation.

[0015] (3) This solution uses an auxiliary baffle set on the top of the mounting plate. The gap between the auxiliary baffle and the mounting plate is less than the thickness of the mounting plate, forming a tight support structure. When the mounting plate is under stress, it provides auxiliary support and improves the torsional resistance. Attached Figure Description

[0016] 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: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the hoisting auxiliary components of this utility model; Figure 3 This is a top view of the hoisting auxiliary component of this utility model; Figure 4 This is a cross-sectional view of the hoisting auxiliary component of this utility model.

[0017] In the diagram: 1. Roller box body; 2. Auxiliary baffle; 3. Lifting auxiliary components; 31. Mounting plate; 311. Mounting hole; 32. Support cylinder; 321. Annular groove; 322. Through groove; 33. Mounting bolt. 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] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, specifically, a low-temperature high-strength bar finishing mill roll box includes a roll box body 1. The roll box structure is the roll box component of the overall finishing mill equipment. Its specific structure, connection method with the mill, and operating principle can all refer to existing low-temperature high-strength bar finishing mill equipment, which belongs to the prior art, so it is not described in detail here. Lifting auxiliary components 3 are fixed to both sides of the outer shell of the roll box body 1. The lifting auxiliary components 3 include mounting plates 31, support cylinders 32, and mounting bolts 33. The edge of the mounting plate 31 is fixedly connected to the outer wall of the roll box body 1 through the mounting bolts 33. The bolt connection method is the same as the multiple bolt structures on the outer wall of the roll box. The bolt loosening method can also refer to the existing roller box bolts, which is a common technology, so it will not be elaborated on here. The support cylinder 32 is integrally formed in the middle of the mounting plate 31 and extends outward. The inner diameter of the support cylinder 32 is adapted to the steel pipe insertion of standard lifting tools to achieve quick docking. Specifically, through the above technical solution, when lifting and transporting the roller box, the lifting steel pipe can be quickly inserted into the inner side of the support cylinder 32 for lifting. At the same time, the inner diameter of the support cylinder 32 can be slightly larger than the insertion steel pipe to adapt to different models of lifting equipment. The lifting operation is quick and convenient, avoiding the problem of binding when using traditional hooks to connect lifting tools.

[0020] Furthermore, an annular groove 321 is provided in the middle of the outer wall of the support cylinder 32. The annular groove 321 has a certain depth, and the wall thickness of the support cylinder 32 is sufficient, being twice the depth of the annular groove 321. This prevents the structural stability of the support cylinder 32 from being affected when lifting equipment through the annular groove 321, and is used for external hoisting rope binding and lifting. The cross-section of the annular groove 321 is U-shaped to prevent the hoisting rope from slipping, thus avoiding the situation where the lifted roller box equipment shakes due to the slipping of the hoisting rope. Through the above technical solution, the roller box equipment can be quickly lifted by external hoisting rope lifting tools. The annular groove 321 fits closely with the hoisting rope, avoiding the situation where conventional sheet hooks can easily scratch the hoisting rope, and is suitable for hoisting rope or chain lifting operations.

[0021] Furthermore, a through groove 322 is provided in the middle of the top surface of the annular groove 321. The through groove 322 is connected to the inside of the support cylinder 32 and is used for external hook lifting. The size of the through groove 322 to the end opening of the support cylinder 32 is adapted to the conventional standard hook, that is, the hook can be inserted from the end opening of the support cylinder 32 and protrude from the top of the through groove 322 to achieve stable hanging of the support cylinder 32 and facilitate hoisting with hook lifting tools. Specifically, through the above scheme, the support cylinder 32 integrates lifting of steel pipes by hoisting ropes, chains, and hooks, allowing workers to flexibly select lifting tools according to the actual situation without having to find special lifting equipment, thus improving lifting efficiency and making operation convenient.

[0022] Furthermore, the lifting auxiliary components 3 are arranged in pairs, located on both sides of the roller box body 1, and the axes of the support cylinders 32 of each pair of lifting auxiliary components 3 are parallel to ensure balanced force during lifting. The specific installation position of the mounting plate 31 is determined based on actual lifting tests, so that when the lifting rope or other lifting tools are connected to the support cylinders 32 on both sides, the roller box is in a stable state after lifting, avoiding tilting. The installation position can be obtained through actual testing, and the testing steps are also common methods, so they are not described in detail here. The mounting plate 31 and the support cylinder 32 are made of high-strength alloy steel and have sufficient structural strength. The mounting plate 31 has mounting holes 311 on its edge, and the mounting bolts 33 pass through the mounting holes 311. The contact area between the mounting plate 31 and the roller box shell is much larger than that of the traditional hook structure, and the load is distributed by the evenly distributed bolts, so that the stress is dispersed when lifting the roller box, avoiding the risk of stress concentration leading to deformation or falling off that is common in traditional lifting by hooking the roller box shell, thus improving the stability of lifting.

[0023] Reference Figure 1 As shown, specifically, the outer shell of the roller box body 1 is integrally formed with an auxiliary baffle 2. The auxiliary baffle 2 is located above the mounting plate 31, and its width is greater than that of the mounting plate 31. The thickness of the auxiliary baffle 2 is greater than that of the mounting plate 31 to enhance structural stability. The gap between the auxiliary baffle 2 and the mounting plate 31 is smaller than the thickness of the mounting plate 31 to ensure the fixing strength of the mounting plate 31. The auxiliary baffle 2 blocks the mounting plate 31 from above, and the gap between the two is small or directly abuts the mounting plate 31. The roller box is lifted by the support cylinder 32. If the mounting plate 31 is displaced or deformed under force, it can be supported by the auxiliary baffle 2 to further improve the structural strength of the lifting auxiliary component 3 and ensure lifting stability. The overall lifting auxiliary structure and baffle are simple in structure, do not affect the normal use of the existing roller box, and are highly practical.

[0024] The working principle and usage process of this utility model are as follows: An auxiliary baffle 2 is integrally formed on the side of the existing roller box shell, and a mounting plate 31 is fixed to the roller box shell below the auxiliary baffle 2 by bolts. The installation position of the mounting plate 31, i.e., the auxiliary baffle 2, needs to be calculated in advance, that is, to ensure that the roller box does not tilt after lifting. After fixing the mounting plates 31 of multiple sets of lifting auxiliary components 3, when the roller box needs to be lifted, the operator can flexibly use the existing lifting tools, such as the steel pipe splicing tool. The lifting method can be to insert the lifting steel pipe into the inner side of the support cylinder 32, and lift the roller box by abutting the inner wall of the support cylinder 32. If the lifting method is to use a lifting rope or chain, the lifting rope or chain can be tied and connected to the inner side of the annular groove 321 on the outer wall of the support cylinder 32 for lifting. If the lifting method is to use a hook, the tip of the hook-shaped lifting device can be inserted from the end opening of the support cylinder 32 and protrude from the through groove 322 on the top surface of the annular groove 321 to achieve hook lifting. Multiple lifting methods can be used flexibly and have strong adaptability. During the lifting of the roller box, the support cylinder 32 and the mounting plate 31 distribute the force. The mounting plate 31 has a large contact area with the outer shell of the roller box, which can distribute the load. At the same time, the stress is evenly distributed through multiple bolts, which improves the lifting stability.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A roll box for a low-temperature high-strength bar finishing mill, comprising a roll box body (1), characterized in that: The outer shell of the roller box body (1) is fixed with hoisting auxiliary components (3) on both sides. The hoisting auxiliary components (3) include a mounting plate (31), a support cylinder (32) and mounting bolts (33). The edge of the mounting plate (31) is fixedly connected to the outer wall of the roller box body (1) by the mounting bolts (33). The support cylinder (32) is integrally formed in the middle of the mounting plate (31) and extends outward. The outer wall of the support cylinder (32) is provided with an annular groove (321) for external hoisting rope binding and lifting; The annular groove (321) has a through groove (322) in the middle of its top surface. The through groove (322) is connected to the inside of the support cylinder (32) and is used for external hook lifting.

2. The roll box for a low-temperature high-strength bar mill according to claim 1, characterized in that: The outer shell of the roller box body (1) is integrally formed with an auxiliary baffle (2), which is located above the mounting plate (31).

3. The roll box for a low-temperature high-strength bar mill according to claim 2, characterized in that: The thickness of the auxiliary baffle (2) is greater than that of the mounting plate (31) to enhance structural stability.

4. The roll box for a low-temperature high-strength bar mill according to claim 3, characterized in that: The gap between the auxiliary baffle (2) and the mounting plate (31) is smaller than the thickness of the mounting plate (31) to ensure the fixing strength of the mounting plate (31).

5. The roll box for a low-temperature high-strength bar mill according to claim 4, characterized in that: The cross-section of the annular groove (321) is U-shaped to prevent the suspension rope from slipping.

6. The roll box for a low-temperature high-strength bar mill according to claim 5, characterized in that: The mounting plate (31) has mounting holes (311) on its edge, and mounting bolts (33) pass through the mounting holes (311).

7. The roll box for a low-temperature high-strength bar mill according to claim 6, characterized in that: The hoisting auxiliary components (3) are provided in two groups, located on both sides of the roller box body (1), and the axis of the support cylinder (32) of each group of hoisting auxiliary components (3) is parallel to ensure that the force is balanced during hoisting.

8. The roll box for a low-temperature high-strength bar mill according to claim 7, characterized in that: The inner diameter of the support cylinder (32) is adapted to the steel pipe insertion of standard hoisting tools to achieve rapid docking.

9. A roll box for a low-temperature high-strength bar mill according to claim 8, characterized in that: The mounting plate (31) and the support cylinder (32) are made of high-strength alloy steel.

Images