Axial adjusting and locking device of short-stress two-roller mill
By designing an axial adjustment and locking device, the problems of rusting of the axial adjustment bolt and slippage of the locking bolt in short-stress two-roll mills were solved, achieving reliable locking and angle fixation even under rust conditions, thus improving the reliability of axial adjustment and the dimensional accuracy of billets.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-04-14
AI Technical Summary
In the production line of steel bar rolling, during the axial adjustment process of the short-stress two-roll mill, rust on the axial adjustment bolt causes high resistance, making it impossible to operate the wrench. Furthermore, stripping of the locking bolt thread causes axial deviation, affecting the dimensional accuracy of the steel billet.
Design an axial adjustment and locking device including an adjusting bolt, a frame connecting seat, a locking mechanism, and an adjusting mechanism. The adjusting mechanism allows for easy adjustment, while the locking mechanism is suitable for locking bolt sections at different angles, solving the rust problem and fixing the bolt sections.
It achieves resistance relief even in rusted conditions, ensures the angle of the locking rod section is fixed and locked, has a wide range of applications, and improves the reliability of axial adjustment and the dimensional accuracy of steel billets.
Smart Images
Figure CN224114881U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of two-roll mills, and in particular relates to an axial adjustment and locking device for a short-stress two-roll mill. Background Technology
[0002] Currently, the steel bar production line uses a short-stress two-roll mill. Axial adjustment is performed by using a wrench to hold the end of the axial adjustment bolt. When it is necessary to lock the axial adjustment, a wrench is needed to operate the locking bolt rod.
[0003] The following problems exist during actual use:
[0004] (1) In the rolling mill area, due to the heavy cooling water and water vapor, the mechanical structure rusts and other factors caused by the infrequent adjustment of the axial adjustment bolt, resulting in greater resistance. The wrench cannot be turned, which makes it impossible to adjust the axial deviation and affects the dimensional accuracy of the rolled steel billet.
[0005] (2) The internal locking bolt of the axial adjusting bolt is frequently loosened and locked, and the internal screw slips, making it impossible to lock the axial adjusting bolt. This causes the axial adjusting bolt to deviate from the rolling mill rolls after being impacted by the billet during the rolling process, and the dimensional accuracy of the rolled billet is affected. Summary of the Invention
[0006] The purpose of this utility model is to provide an axial adjustment and locking device for a short-stress two-roll mill. Through the design of the adjustment mechanism, it is convenient to adjust the adjustment bolt. Even if rust occurs, the resistance caused by rust can still be relieved by tapping. Through the design of the locking mechanism, the locking rod section can be fixed and locked at an angle. At the same time, it can be applied to locking locking rod sections at different angles, and has a wide range of applications.
[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0008] This utility model is an axial adjustment and locking device for a short-stress two-roll mill, including an adjusting bolt, a frame connecting seat, a locking mechanism and an adjusting mechanism. The adjusting bolt includes an integrally connected rod body and a square head.
[0009] The adjustment mechanism includes a cylindrical part, and a square opening at the center of the cylindrical part is provided to fit the square head with clearance. A locking rod section is integrally connected to the peripheral side of the cylindrical part.
[0010] The frame connecting seat is provided with a number of mounting holes linearly and evenly spaced, and the frame connecting seat is located directly below the outer end of the adjusting bolt.
[0011] The locking mechanism includes an adjusting seat and a C-shaped retaining seat;
[0012] The adjusting seat is fixed to the frame connecting seat by fasteners and mounting holes. A screw sleeve is fixed to the top of the adjusting seat. A screw rod is connected to the screw sleeve by internal threads. A rotating sleeve is rotatably connected to the top of the screw rod.
[0013] The C-shaped card holder is slidably disposed on the outside of the locking rod section, and a shaft is integrally connected to the outside of the C-shaped card holder. The rotating sleeve is sleeved on the shaft and rotatably connected to the shaft.
[0014] Furthermore, when the adjusting seat is located at the end of the frame connecting seat, the angle between the locking rod section and the frame connecting seat is in the range of 45-50 degrees.
[0015] Furthermore, the screw has a tightening part at its top end, which is a square or polygonal structure.
[0016] Furthermore, the locking rod section is a rectangular plate structure, and the inner width of the C-shaped card holder is consistent with the width of the locking rod section.
[0017] Furthermore, the rotating sleeve has an integrally formed platform portion on its circumferential side, and the top end of the screw passes through the platform portion and is rotatably connected to the platform portion.
[0018] Furthermore, the two corners on both sides of the C-shaped card holder and the four corners of the adjustment seat are provided with rounded or chamfered corners.
[0019] This utility model has the following beneficial effects:
[0020] This utility model, through the design of the adjustment mechanism, facilitates the adjustment of the adjusting bolt. Even if rust occurs, the resistance caused by rust can still be relieved by tapping. Through the design of the locking mechanism, the locking rod section can be fixed and locked at an angle. At the same time, it can be applied to locking locking rod sections at different angles, and has a wide range of applications.
[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Fig. 1 This is a schematic diagram of the axial adjustment and locking device for a short-stress two-roll mill according to the present invention.
[0024] Fig. 2This is a schematic diagram of the structure of the locking mechanism of this utility model when it is located at the end of the frame connecting seat;
[0025] The attached diagram lists the components represented by each number as follows:
[0026] 1-Adjusting bolt, 2-Frame connecting seat, 3-Locking mechanism, 4-Adjusting mechanism, 101-Rod body, 102-Square head, 201-Mounting port, 301-Adjusting seat, 302-C-type card seat, 303-Screw sleeve, 304-Screw, 305-Rotating sleeve, 306-Shaft, 307-Tightening part, 308-Platform part, 401-Cylindrical part, 402-Square opening, 403-Locking rod section. Detailed Implementation
[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] Please see Figs. 1-2 As shown, this utility model is an axial adjustment and locking device for a short-stress two-roll mill, including an adjusting bolt 1, a frame connecting seat 2, a locking mechanism 3 and an adjusting mechanism 4. The adjusting bolt 1 includes an integrally connected rod body 101 and a square head 102.
[0029] The adjustment mechanism 4 includes a cylindrical part 401, a square opening 402 that is clearance-fitted with the square head 102 at the center of the cylindrical part 401, and a locking rod section 403 integrally connected to the periphery of the cylindrical part 401.
[0030] The frame connecting seat 2 has a number of mounting holes 201 arranged linearly and evenly, and the frame connecting seat 2 is located directly below the outer end of the adjusting bolt 1;
[0031] The locking mechanism 3 includes an adjusting seat 301 and a C-shaped retainer 302;
[0032] The adjusting seat 301 is fixed to the frame connecting seat 2 by fasteners and mounting port 201. A screw sleeve 303 is fixed on the top of the adjusting seat 301. A screw rod 304 is connected to the screw sleeve 303 by its internal thread. A rotating sleeve 305 is rotatably connected to the top of the screw rod 304.
[0033] The C-type card holder 302 is slidably disposed on the outside of the locking rod section 403. A shaft 306 is integrally connected to the outside of the C-type card holder 302. The rotating sleeve 305 is sleeved on the shaft 306 and rotatably connected to the shaft 306.
[0034] Among them, such as Figs. 1-2As shown, when the adjusting seat 301 is set at the end of the frame connecting seat 2, the angle between the locking rod section 403 and the frame connecting seat 2 is in the range of 45-50 degrees.
[0035] Among them, such as Figs. 1-2 As shown, the screw 304 has a tightening part 307 at its top end, which is a square or polygonal structure.
[0036] Among them, such as Figs. 1-2 As shown, the locking rod section 403 is a rectangular plate structure, and the inner width of the C-shaped card holder 302 is the same as the width of the locking rod section 403.
[0037] Among them, such as Figs. 1-2 As shown, the rotating sleeve 305 has an integral platform part 308 on its circumferential side, and the top end of the screw 304 passes through the platform part 308 and is rotatably connected to the platform part 308.
[0038] Among them, such as Figs. 1-2 As shown, rounded or chamfered corners are provided at the two corners on both sides of the C-type card holder 302 and at the four corners of the adjustment seat 301.
[0039] The working principle of this utility model is as follows:
[0040] 1. When adjustment is needed, the cylindrical part 401 is fitted onto the square head 102 through the square opening 402. The adjustment can be made by applying force through the locking rod section 403. If it is rusted and cannot be turned, the locking rod section 403 can be tapped with a tool.
[0041] 2. After the adjustment is completed, the position of the adjusting seat 301 on the frame connecting seat 2 is determined by adjusting the position of the C-type card seat 302 on the locking rod section 403 and the lifting control of the screw 304 and the screw sleeve 303, and ensuring that the adjusting seat 301 can be connected and fixed with the mounting port 201.
[0042] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0043] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An axial adjustment and locking device for a short-stress two-roll mill, comprising an adjusting bolt (1), wherein the adjusting bolt (1) comprises an integrally connected rod body (101) and a square head (102), characterized in that: It also includes a frame connector (2), a locking mechanism (3) and an adjustment mechanism (4); The adjustment mechanism (4) includes a cylindrical part (401), and a square opening (402) that is clearance-fitted with the square head (102) is provided at the axis of the cylindrical part (401). A locking rod section (403) is integrally connected to the periphery of the cylindrical part (401). The frame connecting seat (2) is provided with a number of mounting holes (201) linearly and evenly spaced, and the frame connecting seat (2) is located directly below the outer end of the adjusting bolt (1); The locking mechanism (3) includes an adjusting seat (301) and a C-shaped retainer (302); The adjusting seat (301) is fixed to the frame connecting seat (2) by fasteners and mounting port (201). A screw sleeve (303) is fixed on the top of the adjusting seat (301). A screw rod (304) is internally threaded to the screw sleeve (303). A rotating sleeve (305) is rotatably connected to the top of the screw rod (304). The C-shaped card holder (302) is slidably disposed on the outside of the locking rod section (403). A shaft (306) is integrally connected to the outside of the C-shaped card holder (302). The rotating sleeve (305) is sleeved on the shaft (306) and rotatably connected to the shaft (306).
2. The axial adjustment and locking device for a short-stress two-roll mill according to claim 1, characterized in that, When the adjusting seat (301) is set at the end of the frame connecting seat (2), the angle between the locking rod section (403) and the frame connecting seat (2) is in the range of 45-50 degrees.
3. The axial adjustment and locking device for a short-stress two-roll mill according to claim 1, characterized in that, The screw (304) has a tightening part (307) at its top end, and the tightening part (307) is a square structure or a polygonal structure.
4. The axial adjustment and locking device for a short-stress two-roll mill according to claim 1, characterized in that, The locking rod section (403) is a rectangular plate structure, and the inner width of the C-shaped card holder (302) is the same as the width of the locking rod section (403).
5. The axial adjustment and locking device for a short-stress two-roll mill according to claim 1, characterized in that, The rotating sleeve (305) has an integral platform section (308) on its circumferential side, and the top end of the screw (304) passes through the platform section (308) and is rotatably connected to the platform section (308).
6. The axial adjustment and locking device for a short-stress two-roll mill according to claim 1, characterized in that, The two corners on both sides of the C-type card holder (302) and the four corners of the adjustment seat (301) are all provided with rounded corners or chamfers.