A guide fixing device for a rough rolling mill train

Abstract

The utility model discloses a roughing mill unit guide fixing device, including guide, the device still includes fixed mechanism and adjusting mechanism, fixed mechanism includes gantry and a plurality of first bolt, and guide is located in the gantry, and the inlet of guide is perpendicular to the length direction of gantry, and the gantry includes crossbeam, frame stand and fixed column, and the side of fixed column is equipped with a plurality of double -way inner screw structure, the utility model changes the roughing guide crossbeam from square into gantry crossbeam, and the stability of guide system is improved obviously through optimizing structure, and equipment operation is reliable, and both solve the problem of the rolling piece when biting in shakes, guarantee the product quality, and eliminate the security risk when the steel of piling handles, have the significant technical feasibility and economic value, and this reconstruction scheme can also provide the reference for the similar problem of other workshops.

Description

Technical Field

[0001] This utility model relates to the field of guide fixing, specifically to a guide fixing device for a roughing mill. Background Technology

[0002] Rough rolling is a crucial step in steel smelting and processing. The equipment used for this step is the roughing mill. Conventional roughing mills produce large workpieces with high impact forces, so they typically use crossbeams and pins for fixation. The guide crossbeams in roughing mills are 7555 square crossbeams, reinforced with two bolts and two locating pins. However, in actual production, when the workpiece bites into the die, the guide crossbeams exhibit significant overall swaying, initially tilting upwards and then leveling off, frequently resulting in guide displacement. This causes the guide to become misaligned with the die roll line, leading to steel accumulation on the rolling line. This can cause blockages, equipment damage, and reduced product quality. Furthermore, handling accumulated steel can affect rolling forming, increasing the probability of defective products, and poses a safety hazard due to instability. Therefore, there is an urgent need for new equipment that can effectively reinforce the guides without affecting roughing production. Utility Model Content

[0003] Purpose of the utility model: To solve the problems mentioned in the background art, this utility model discloses a guide fixing device for a roughing mill. By using the frame columns and newly designed fixing columns to form a gantry structure, and using bolts to reinforce the guide without affecting production, the stability of the guide is effectively improved, allowing the rolled piece to be smoothly bitten in, thereby reducing the production risk of the rolling line at low cost.

[0004] Technical solution:

[0005] A guide fixing device for a roughing mill unit includes a guide, and the device further includes a fixing mechanism and an adjusting mechanism;

[0006] The fixing mechanism includes a gantry frame and several first bolts. The guide is located inside the gantry frame. The inlet of the guide is perpendicular to the length direction of the gantry frame. The gantry frame includes a crossbeam, a frame column and a fixing column. The side of the fixing column is provided with several double-through internal thread structures. The first bolts are screwed into the corresponding double-through internal thread structures to a preset depth. The end of the first bolt away from the screw head is used to abut against the guide.

[0007] The adjustment mechanism includes a sliding hoop, which is fixed to the side of the guide away from the first bolt and slidably connected to the frame column. The sliding hoop moves the guide to a preset height, and the second bolt on the sliding hoop is locked to fix the guide.

[0008] Furthermore, the fixing column consists of two flat steel bars welded vertically below the crossbeam, with a gap between the two flat steel bars. Double-through internal threaded columns are welded and fixed at equal intervals in the gap to form a double-through internal threaded structure.

[0009] Furthermore, the fixing column is an independent steel column welded vertically below the crossbeam, and the side of the fixing column has several equidistant double-through internal threaded holes as a double-through internal thread structure.

[0010] Furthermore, the guide is provided with a number of positioning pins on the side near the first bolt that are coaxial with and matched with the first bolt. When the first bolt is screwed into the corresponding internal stud to a preset depth, the end of the first bolt away from the screw head is screwed into the corresponding positioning pin to tighten and fix the guide.

[0011] Furthermore, the locating pin includes, but is not limited to, internal threaded studs, nuts, and internal threaded cylindrical pins.

[0012] Furthermore, the fixing mechanism also includes a telescopic base, the execution end of which is fixed below the guide. The sliding hoop moves the guide to a preset height, and the telescopic base extends and retracts in accordance with the preset height to assist in fixing the guide.

[0013] Furthermore, the crossbeam is made of 50mm thick steel plate.

[0014] Beneficial effects:

[0015] 1. This utility model changes the original single crossbeam of the roughing mill to a gantry structure that cooperates with the frame columns, and changes the four-point stability of the crossbeam and pins to the frame stability of multiple bolts, further reducing the shaking of the guide during production and reducing the occurrence of steel piling on the rolling line.

[0016] 2. This utility model, through the cooperation of the sliding hoop and the fixing frame bolt, enables the guide to be stable while also having the function of adjusting the height for different production conditions, further improving the flexibility of the equipment.

[0017] 3. This utility model adds a telescopic base to the bottom of the guide, increasing the number of guide fixing points to three in addition to the original sliding hoop and fixing column bolts, further improving its stability and reducing the probability of steel stacking and safety hazards.

[0018] 4. The crossbeams and fixed columns of this utility model can all be welded from scrap steel, which further reduces the economic cost of the stabilizer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the fixing structure in Embodiment 1 of this utility model;

[0021] Figure 3 This is a schematic diagram of the fixing structure in Embodiment 2 of this utility model;

[0022] Figure 4 This is a schematic diagram of the adjustment mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram illustrating the use of this utility model.

[0024] In the diagram: 1. Guide, 11. Feed inlet, 2. Fixing mechanism, 21. Gantry frame, 211. Crossbeam, 212. Frame column, 213. Fixing column, 22. First bolt, 23. Positioning pin, 24. Telescopic base, 3. Adjusting mechanism, 31. Sliding hoop, 32. Second bolt, 4. Double-through internal thread structure, 41. Double-through internal thread stud, 42. Double-through internal thread hole Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example 1:

[0027] like Figure 1 As shown, this utility model discloses a guide fixing device for a roughing mill, including a guide 1, and the device also includes a fixing mechanism 2 and an adjusting mechanism 3;

[0028] like Figure 2 As shown, the fixing mechanism 2 includes a gantry frame 21 and several first bolts 22. The guide 1 is located inside the gantry frame 21. The feed inlet 11 of the guide 1 is perpendicular to the length direction of the gantry frame 21. The gantry frame 21 includes a crossbeam 211, a frame column 212 and a fixing column 213. Several double-through internal thread structures 4 are provided on the side of the fixing column 213. The first bolts 22 are screwed into the corresponding double-through internal thread structures 4 to a preset depth. The end of the first bolt 22 away from the screw head is used to press against the guide 1.

[0029] In this embodiment, the number of double-through internal thread structures 4 is set to 5, and the corresponding number of first bolts 22 is also set to 5. In use, 3 of the first bolts 22 will actually abut against the guide 1, and the remaining 2 first bolts 22 will be used to abut against the guide when the height of the guide 1 is adjusted by the adjusting mechanism 3.

[0030] like Figure 4 As shown, the adjustment mechanism 3 includes a sliding hoop 31, which is fixed to the side of the guide 1 away from the first bolt 22 and is slidably connected to the frame column 212. The sliding hoop 31 drives the guide 1 to a preset height, and the second bolt 32 on the sliding hoop is locked to fix the guide.

[0031] The fixing post 213 consists of two flat steel bars welded vertically below the crossbeam 211, with a gap between the two flat steel bars. Double-through internal threaded studs 41 are welded and fixed equidistantly within this gap, forming the double-through internal thread structure 4. The reason for choosing a structure of two flat steel bars welded vertically as the fixing post 213 is twofold: firstly, the flat steel bars can be scrap or waste steel, facilitating recycling and reducing costs; secondly, the gap in the flat steel bars allows for the repeated welding of double-through internal threaded studs 41 with different spacings and models, enabling modifications to suit different roughing mill models without changing materials, thus improving the applicability and flexibility of this invention.

[0032] The guide 1 has several locating pins 23 on its side near the first bolt 22, which are coaxial with and matched with the first bolt 22. When the first bolt 22 is screwed into the corresponding internal stud to a preset depth, the end of the first bolt 22 away from the screw head is screwed into the corresponding locating pin 23, thereby tightening and fixing the guide 1. The locating pins 23 include, but are not limited to, internal studs, nuts, and internally threaded cylindrical pins. In this embodiment, the locating pins 23 are internally threaded cylindrical pins and are welded to the side of the guide 1.

[0033] The fixing mechanism 2 also includes a telescopic base 24. The actuator of the telescopic base 24 is fixed below the guide 1. The sliding hoop drives the guide 1 to a preset height. The telescopic base 24 extends and retracts in accordance with the preset height and provides auxiliary fixation for the guide 1.

[0034] In this utility model, the crossbeam 211 is made of 50mm thick steel plate. The crossbeam 211 made of this specification of steel plate is welded to the frame column 212 and the fixed column 213, which can effectively ensure the stability of the guide.

[0035] Example 2:

[0036] like Figure 3 As shown, Embodiment 2 has a structure that is basically the same as Embodiment 1, the difference being that the fixing column 213 is an independent steel column welded vertically below the crossbeam 211, and the fixing column 213 has several equidistant double-through internal threaded holes 42 on its side as a double-through internal thread structure 4. Compared to Embodiment 1, Embodiment 2 changes the fixing column 213 and the double-through internal thread structure 4 into an integrated unit. After the first bolt 22 is screwed in and tightens against the guide 1, the integrated Embodiment 2 can withstand higher seismic strength and stability. However, the integrated fixing column 213 is inferior to Embodiment 1 in terms of adjustability and cost, and is more suitable for large roughing mills with higher requirements for seismic resistance and sway resistance. Implementers can choose according to different production conditions.

[0037] Example 3:

[0038] Example 3 is structurally similar to Examples 1 and 2, except that the guide 1 in Example 3 lacks a locating pin 23 on its side. When the first bolt 22 is tightened, the end furthest from the bolt head directly contacts and abuts against the side of the guide 1, achieving fixation through friction. Compared to Examples 1 and 2, Example 3's structure eliminates the restriction of the locating pin 23. Combined with the sliding clamp 31, this allows for more precise and free height adjustment of the guide 1, enabling it to adapt to a wider range of roughing mills. However, the lack of the locating pin 23 reduces its stability. Therefore, it is more suitable for reinforcing small to medium-sized roughing mills with relatively small guide vibration amplitudes.

[0039] like Figure 5 As shown, the implementation process of this utility model is as follows:

[0040] Before using the roughing mill, workers raise or lower the telescopic base 24 according to different production needs, and slide the sliding hoop 31 to bring the guide to the appropriate position, then tighten the second bolt 32. At this time, the gantry frame 21 fixed to the ground or a stable base is adjusted: several first bolts 22 on the side of the fixing column 213 are screwed into several positioning pins 23 on the side near the first bolt 22, which are coaxial with and matched with the first bolt 22, to fix the guide. If the positioning pins 23 are not installed on the side of the guide 1, the first bolts 22 directly abut against the side of the guide for fixation. At this time, the guide 1 is fixed at three points by the fixing mechanism 2, the adjusting mechanism 3, and the telescopic base 24, significantly improving stability. The production line is then started, and the problem of steel accumulation on the rolling line is solved.

[0041] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art. The general principles of the present invention may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention should not be limited to the embodiments shown herein, but should cover the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A guide fixing device for a roughing mill, comprising a guide (1), characterized in that, The device also includes a fixing mechanism (2) and an adjusting mechanism (3); The fixing mechanism (2) includes a gantry frame (21) and several first bolts (22). The guide (1) is located inside the gantry frame (21). The feed inlet (11) of the guide (1) is perpendicular to the length direction of the gantry frame (21). The gantry frame (21) includes a crossbeam (211), a frame column (212), and a fixing column (213). The side of the fixing column (213) is provided with several double-through internal thread structures (4). The first bolts (22) are screwed into the corresponding double-through internal thread structures (4) to a preset depth. The end of the first bolt (22) away from the screw head is used to abut against the guide (1). The adjustment mechanism (3) includes a sliding hoop (31), which is fixed to the side of the guide (1) away from the first bolt (22) and slidably connected to the frame column (212). The sliding hoop (31) drives the guide (1) to a preset height, and the second bolt (32) on the sliding hoop is locked to fix the guide.

2. The guide fixing device for a roughing mill according to claim 1, characterized in that, The fixed column (213) consists of two flat steel bars welded vertically below the crossbeam (211). A gap is left between the two flat steel bars, and double-through internal threaded columns (41) are welded and fixed at equal intervals in the gap as a double-through internal threaded structure (4).

3. The guide fixing device for a roughing mill according to claim 1, characterized in that, The fixed column (213) is an independent steel column welded vertically below the crossbeam (211). The fixed column (213) has several equidistant double-through internal thread holes (42) on its side as a double-through internal thread structure (4).

4. The guide fixing device for a roughing mill according to claim 2 or 3, characterized in that, The guide (1) has several positioning pins (23) on the side near the first bolt (22) that are coaxial with and matched with the first bolt (22). When the first bolt (22) is screwed into the corresponding internal stud to a preset depth, the end of the first bolt (22) away from the screw head is screwed into the corresponding positioning pin (23) to tighten and fix the guide (1).

5. The guide fixing device for a roughing mill according to claim 4, characterized in that, The positioning pin (23) includes, but is not limited to, internal studs, nuts, and internal thread cylindrical pins.

6. The guide fixing device for a roughing mill according to claim 1, characterized in that, The fixing mechanism (2) also includes a telescopic base (24). The execution end of the telescopic base (24) is fixed below the guide (1). The sliding hoop drives the guide (1) to a preset height. The telescopic base (24) extends and retracts in accordance with the preset height and provides auxiliary fixation for the guide (1).

7. The guide fixing device for a roughing mill according to claim 1, characterized in that, The crossbeam (211) is a 50mm thick steel plate.

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