Roller axial adjustable fixing pressing block with adjusting structure
By designing axially adjustable fixed block of the roll with an adjusting structure, the squirming problem caused by changes in the height of the roll bearing seat is solved, and the stable fixation of the roll and the production stability are improved.
Patent Information
- Application Number
- CN202422197926.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In high-speed wire rolling mills, the wear of the support blocks of the roller bearing seat trunnions and the frame arches causes the height of the roller bearing seat to change. The axial fixed blocks of the fixed height cannot effectively fix the rollers, causing the roller to rush, affecting production stability and aggravating the wear of spare parts.
A roll axially adjustable fixed block with an adjustment structure is designed. By installing an adjustment device and an adjustable thickness adjustment gasket on the fixed block, the effective height of the roll axially fixed block can be adjusted according to the wear of the roll bearing seat trunnions and the frame arch support block.
The stable axial fixation of the roll is achieved, which avoids roll twitching, improves production stability, and reduces spare parts consumption.
Smart Images
Figure CN223011491U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high-speed wire rod production lines in the metallurgical industry, and specifically relates to an axially adjustable fixed pressing block for a rolling mill with an adjusting structure. Background Technique
[0002] The rough rolling of high-speed wire rod mills is generally designed as a horizontal-vertical alternating rolling mill, and generally uses nodular cast iron or cast steel rolls. Its external dimensions should meet the requirements of on-site use, and the machining accuracy should also meet the requirements of the drawing design accuracy. The roll is the most important production tool in the high-speed wire rod mill and is the main component on the rolling mill. During the rolling process, the roll is in direct contact with the rolled piece, and under certain rolling conditions, the rolled piece is plastically deformed, and finally the product shape and dimensional accuracy that meet the standard requirements are obtained. The working conditions of the roll are very harsh, so the design strength and material of the roll, as well as the on-line layout method, installation and maintenance of the roll, directly affect the service life and state of the roll. The basic structure of the roll is divided into three parts, generally including the roll body, roll diameter and roll head. The roll body is the working part in direct contact with the rolled piece. The roll body of the roll is a cylinder, and rolling grooves are machined on it. The roll diameter is the supporting part of the roll, and the roll is supported on both sides of the bearings by the roll diameter.
[0003] The roll head is used to transmit torque. The roll head matches the connecting shaft and is generally made into a flat head or a plum blossom head. The two ends of the on-line roll are in the roll bearing seats, and the roll and the bearing seats are assembled in the rolling mill housing. During the production process, it is necessary to axially and radially fix the roll to ensure that there is no roll misalignment between the two rolls and achieve stable production. However, due to the wear of the trunnions on the roll bearing seats and the support blocks on the rolling mill housing, the height of the upper end of the trunnion of the roll bearing seat will gradually decrease. If a fixed-height axially fixed pressing block for the roll is used, the roll bearing seat and the corresponding roll cannot be fixed, resulting in the roll and the connected bearing seat moving during the production process, leading to unstable process and steel piling up, and at the same time accelerating the wear speed of relevant spare parts. Therefore, the present utility model provides an axially adjustable fixed pressing block for a roll with an adjusting structure to solve the above problems. Content of the Utility Model
[0004] The purpose of the present utility model is to provide an axially adjustable fixed pressing block for a roll with an adjusting structure to solve the problems in the above background technique.
[0005] To achieve the above purpose, the present utility model provides the following technical solution: An axially adjustable fixed pressing block for a roll with an adjusting structure, comprising:
[0006] The first chassis, a second chassis is provided at the rear position of the first chassis, and the first chassis and the second chassis have the same structure. An inner groove is provided inside the first chassis and the second chassis, and the inner groove is a structure that penetrates from front to back. An adjusting device is installed in the inner groove, and the fixing block body on the first chassis and the second chassis is installed on the adjusting device;
[0007] At the upper end of the fixing block body, there is an integrally formed top plate. The top plate has an inverted L structure. An installation groove is provided on the bottom end surface of the top plate, and both the front and rear ends of the installation groove are through structures. An adjusting gasket is provided on the bottom end surface of the installation groove, and a pressing plate is installed on the bottom end surface of the installation groove through bolts.
[0008] Preferably, as a preferred embodiment of the present invention, the adjusting device includes a threaded column, a limit nut A, and a limit nut B. The limit nut A provided on the threaded column is located on the right side of the fixing block body, and the limit nut B provided on the threaded column is located on the left side of the fixing block body.
[0009] Preferably, as a preferred embodiment of the present invention, the threaded column is installed in a through hole provided at the lower end of the fixing block body, and the diameter of the through hole is larger than the diameter of the threaded column.
[0010] Preferably, as a preferred embodiment of the present invention, the limit nut A and the limit nut B have the same structure, and the outer diameter of the limit nut A and the limit nut B is larger than the diameter of the through hole.
[0011] Preferably, as a preferred embodiment of the present invention, the front and rear bottom end surfaces of the fixing block body respectively contact the inner bottom end surfaces of the first chassis and the second chassis.
[0012] Preferably, as a preferred embodiment of the present invention, the bolt penetrates through the adjusting gasket and is threadedly connected to the top plate, and the bolt is a countersunk socket head cap screw.
[0013] The front and rear end surfaces of the pressing plate are flush with the front and rear end surfaces of the top plate, and there is a gap between the right end surface of the pressing plate and the left end surface of the fixing block body.
[0014] The thickness of the adjusting gasket is 1mm, 3mm, and 5mm.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. In the present invention, according to the wear conditions of the trunnions on the roll bearing housing and the support blocks on the frame housing, the effective height of the axial fixing block of the roll can be adjusted by replacing the gaskets with different thicknesses on the pressing block, ensuring sufficient axial pressure is provided to the roll to be fixed, so that it does not move axially during production, achieving the purpose of stable production and reducing spare parts consumption.
[0017] 2. For enterprises that need to axially fix the high-speed wire rough and intermediate rolling rolls in the present utility model, it has great application and popularization significance. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0019] Figure 2 is a schematic exploded view of the fixed pressing block body and the pressing plate of the present utility model;
[0020] Figure 3 is a front view of the connection structure between the chassis and the fixed pressing block body of the present utility model;
[0021] Figure 4 is a right view of the connection structure between the fixed pressing block body and the threaded column of the present utility model;
[0022] Figure 5 is a schematic diagram of part A of the present utility model.
[0023] In the figure: 1. First chassis; 2. Second chassis; 3. Inner groove; 4. Adjusting device; 41. Threaded column; 42. Limit nut A; 43. Limit nut B; 5. Fixed pressing block body; 6. Top plate; 7. Adjusting gasket; 8. Pressing plate; 9. Installation groove; 10. Bolt; 11. Through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and 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.
[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "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 therefore cannot be construed as a limitation of the present utility model. In addition, in the description of the present utility model, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0026] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be a communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The meaning of "a plurality" is two or more. Unless otherwise clearly and specifically defined, they all fall within the scope of protection of the present utility model.
[0027] Embodiment: As Figures 1-5 , the present utility model provides a technical solution, including:
[0028] A first chassis 1, a second chassis 2 is provided at the rear position of the first chassis 1, and the first chassis 1 and the second chassis 2 have the same structure. An inner groove 3 is opened inside the first chassis 1 and the second chassis 2, and the inner groove 3 is a structure that penetrates from front to back. An adjusting device 4 is installed in the inner groove 3, and a fixed pressing block body 5 on the first chassis 1 and the second chassis 2 is installed on the adjusting device 4;
[0029] An integrated top plate 6 is provided at the upper end of the fixed pressing block body 5. The top plate 6 has an inverted L structure. An installation groove 9 is opened on the bottom end surface of the top plate 6, and both the front and rear ends of the installation groove 9 are through structures. An adjusting gasket 7 is provided on the bottom end surface of the installation groove 9, and a pressing plate 8 is installed on the bottom end surface of the installation groove 9 through a bolt 10.
[0030] The adjusting device 4 includes a threaded column 41, a limit nut A 42, and a limit nut B 43. The limit nut A 42 provided on the threaded column 41 is located on the right side of the fixed pressing block body 5, and the limit nut B 43 provided on the threaded column 41 is located on the left side of the fixed pressing block body 5.
[0031] The threaded column 41 is installed in a through hole 11 opened at the lower end of the fixed pressing block body 5, and the diameter of the through hole 11 is larger than the diameter of the threaded column 41.
[0032] The limit nut A 42 and the limit nut B 43 have the same structure, and the outer diameters of the limit nut A 42 and the limit nut B 43 are larger than the diameter of the through hole 11.
[0033] The front and rear bottom end surfaces of the fixed pressing block body 5 are respectively in contact with the inner bottom end surfaces of the first chassis 1 and the second chassis 2.
[0034] The bolt 10 penetrates through the adjusting gasket 7 and is threadedly connected to the top plate 6, and the bolt 10 is a countersunk socket hexagon bolt.
[0035] The front and rear end faces of the pressing plate 8 are flush with the front and rear end faces of the top plate 6, and there is a gap between the right end face of the pressing plate 8 and the left end face of the fixed pressing block body 5.
[0036] The thicknesses of the adjusting shims 7 are 1 mm, 3 mm, and 5 mm.
[0037] Working principle:
[0038] 1. The axially adjustable fixed pressing block for the roll is of a split structure and mainly consists of three parts: a pressing block, an adjusting shim, and a pressing plate.
[0039] 2. The axially adjustable fixed pressing block for the roll has lugs on both sides, and bolt holes are formed in the lugs. Moreover, the bolt holes are oblong holes, which is beneficial for the overall position adjustment of the pressing block.
[0040] 3. The adjusting shims are placed between the axially adjustable fixed pressing block for the roll and the pressing plate. The thicknesses of the adjusting shims are 1 mm, 3 mm, and 5 mm, and they can be selected and used in pairs according to the height of the upper end of the trunnion of the roll bearing seat.
[0041] 4. The axially adjustable fixed pressing block for the roll and the pressing plate are connected by countersunk socket head cap screws.
[0042] 5. The axially adjustable fixed pressing block for the roll is connected to the mill housing body by hexagon head bolts, thereby realizing the axial fixation of the roll.
[0043] 6. To ensure the overall strength of the axially adjustable fixed pressing block for the roll, the material of the axially adjustable fixed pressing block for the roll is selected as cast steel.
[0044] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
Claims
1. A roller axially adjustable fixed pressure block with an adjustment structure, characterized in that: include: A first base frame (1), a second base frame (2) is arranged at the rear of the first base frame (1), and the first base frame (1) and the second base frame (2) have the same structure, an inner groove (3) is provided on the inner side of the first base frame (1) and the second base frame (2), and the inner groove (3) is a front-to-back penetrating structure, an adjusting device (4) is installed in the inner groove (3), and the fixed pressure block bodies (5) on the first base frame (1) and the second base frame (2) are installed on the adjusting device (4); A top plate (6) of an integrated structure is provided at the upper end of the fixed pressure block body (5), the top plate (6) is an inverted L structure, a mounting groove (9) is provided on the bottom end surface of the top plate (6), and both front and rear ends of the mounting groove (9) are through structures, an adjustment gasket (7) is provided on the bottom end surface of the mounting groove (9), and a pressure plate (8) is installed on the bottom end surface of the mounting groove (9) via bolts (10).
2. The roller axially adjustable fixed pressure block with an adjustment structure according to claim 1, characterized in that: The adjusting device (4) comprises a threaded column (41), a limiting nut A (42) and a limiting nut B (43); the limiting nut A (42) provided on the threaded column (41) is located on the right side of the fixed pressure block body (5); and the limiting nut B (43) provided on the threaded column (41) is located on the left side of the fixed pressure block body (5).
3. The roller axially adjustable fixed pressure block with an adjustment structure according to claim 2, characterized in that: The threaded column (41) is installed in a through hole (11) opened at the lower end of the fixed pressure block body (5), and the diameter of the through hole (11) is larger than the diameter of the threaded column (41).
4. The roller axially adjustable fixed pressure block with an adjustment structure according to claim 2, characterized in that: The limiting nut A (42) and the limiting nut B (43) have the same structure, and the outer end diameters of the limiting nut A (42) and the limiting nut B (43) are larger than the diameter of the through hole (11).
5. The roller axially adjustable fixed pressure block with an adjustment structure according to claim 1, characterized in that: The front and rear bottom end surfaces of the fixed pressure block body (5) are respectively in contact with the inner bottom end surfaces of the first bottom frame (1) and the second bottom frame (2).
6. The axially adjustable fixed pressure block of a roller with an adjustment structure according to claim 1, characterized in that: The bolt (10) passes through the adjusting gasket (7) and is threadedly connected in the top plate (6), and the bolt (10) is a countersunk hexagon socket bolt.
7. The roller axially adjustable fixed pressing block with an adjustment structure according to claim 1, characterized in that: The front and rear end surfaces of the pressing plate (8) are flush with the front and rear end surfaces of the top plate (6), and a gap is provided between the right end surface of the pressing plate (8) and the left end surface of the fixed pressing block body (5).
8. The roller axially adjustable fixed pressing block with an adjustment structure according to claim 1, characterized in that: The thickness of the adjusting gasket (7) is 1 mm, 3 mm and 5 mm.