A cold rolling loop connecting frame counterweight device

Abstract

The utility model relates to strip steel cold rolling technical field discloses a kind of cold rolling loop connecting frame counterweight device, including solid pipe, the middle part of the solid pipe is fixedly connected with fastening sleeve, the left and right of the solid pipe is provided with anti-breaking mechanism, the anti-breaking mechanism is used to improve the stability of link structure, the front and back of the solid pipe is provided with buffer mechanism, the buffer mechanism is used to improve the buffering effect of structure, the anti-breaking mechanism includes L-shaped board one, the left side of the L-shaped board one is installed in the left side of solid pipe, the middle upper portion of the L-shaped board one is equipped with two holes one. In the utility model, hollow tube is replaced by solid tube, the fixation of solid tube is realized by bolt one and bolt two, the ability of resisting bending deformation and torsion is stronger, a stable constraint structure is formed, axial movement and transverse swing of solid tube are avoided, fatigue fracture risk caused by loosening at connection is reduced, and the utility model is suitable for cold rolling complex environment.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling technology of strip steel, and in particular to a counterweight device for a cold rolling looper connecting frame. Background Technology

[0002] In the cold rolling production process, the looper is a key piece of equipment to ensure the continuous and stable transmission of strip steel. It can buffer the speed difference between the preceding and following processes, store a certain amount of strip steel, and ensure that production is not interrupted due to short-term speed adjustments or equipment failures. However, because the looper frequently lifts, lowers, and starts and stops during operation, and has a complex structure and bears a large weight, especially some vertical loopers, the looper needs to support many steering rollers and a large steel structure. This results in significant inertia and impact forces during equipment operation. If not effectively controlled, this will not only cause serious wear to the mechanical parts of the equipment, shorten its service life, and increase maintenance costs, but also lead to unstable tension of the strip steel during transmission, thus affecting the key quality indicators of strip flatness and thickness uniformity. By using the principle of gravity balance to reduce the inertia and impact forces during the operation of the looper, a reasonably configured counterweight device can reduce the motor load, improve the motor's working efficiency, reduce energy consumption, significantly extend the motor's service life, and reduce the frequency of equipment maintenance.

[0003] A search revealed Chinese Patent Publication No. CN222253851U, which discloses a counterweight device including a counterweight box and at least one fastening component for fixing the counterweight box to a turntable. The counterweight box has a first mounting hole that mates with the fastening component. The fastening component includes a push rod, a first connecting member, and a second connecting member. One end of the push rod is disposed in the first mounting hole and connected to the first connecting member, while the other end of the push rod extends out of the first mounting hole and passes through the turntable. The other end of the push rod is connected to the turntable via the second connecting member. This counterweight device can solve the problem of bolt breakage and increase safety during use. However, in the cold rolling process of strip steel, two looper carriages need to be connected. The two carriages frequently open and close, causing the connecting frame to be impacted. The connection point jumps due to inertia, and the hollow tube is prone to breakage under repeated impacts, resulting in the failure of the connection between the two carriages, which seriously affects the continuity and stability of production. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a counterweight device for a cold-rolled looper connecting frame, which aims to improve the problem in the prior art where hollow tubes are easily broken under repeated impacts, resulting in the failure of the connection between the two carriages and seriously affecting the continuity and stability of production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a counterweight device for a cold-rolled looper connecting frame, comprising a solid tube, a fastening sleeve fixedly connected to the middle of the solid tube, anti-breakage mechanisms provided on the left and right sides of the solid tube to improve the stability of the connecting structure, buffer mechanisms provided on the front and rear sides of the solid tube to improve the buffering effect of the structure, the anti-breakage mechanism comprising an L-shaped plate, the right side of the L-shaped plate being installed on the left side of the solid tube, two holes being opened in the upper middle part of the L-shaped plate, and a bolt being threadedly connected to the inner wall of the holes, an L-shaped plate being installed on the right side of the solid tube, two holes being opened in the upper middle part of the L-shaped plate, and a bolt being threadedly connected to the inner wall of the holes, positioning holes being opened on both the left and right sides of the solid tube, a protective component being provided on the outer wall of the solid tube, a connecting component being provided on the left side of the L-shaped plate, and an installation component being provided on the right side of the L-shaped plate.

[0006] The above technical solution involves installing a fastening sleeve in the middle of the solid tube to ensure the stability of the overall structure and the protection of the solid tube. Anti-breakage mechanisms are set on the left and right sides of the solid tube. The main function of these anti-breakage mechanisms is to significantly improve the stability of the connection structure and prevent breakage during use. Buffer mechanisms are also set on the front and rear sides of the solid tube. These buffer mechanisms can effectively enhance the buffering effect of the structure and reduce the impact of impact on the overall device.

[0007] As a further description of the above technical solution:

[0008] The buffer mechanism includes two elastic blocks, the left side of which is fixedly connected to the right side of the protective plate. The right side of each elastic block is fixedly connected to a support plate. The right side of each support plate is fixedly connected to an elastic block. The right side of the elastic block is fixedly connected to the left side of the L-shaped plate. Two holes are opened in the middle of the fastening sleeve. A spring plate is fixedly connected to the outer wall of the bolt and a spring plate is fixedly connected to the outer wall of the bolt.

[0009] Through the above technical solution: the left side of the elastic block one is fixedly connected to the right side of the protective plate one to ensure its stability and reliability. The right side of the elastic block one is fixedly connected to a support plate, which provides additional support to enhance the stability and durability of the entire mechanism. The right side of the support plate is also fixedly connected to another elastic block two, which can further absorb and buffer external forces to protect the mechanism from damage.

[0010] As a further description of the above technical solution:

[0011] The protective component includes a protective frame one, the left side of which is fixedly connected to the upper right side of an L-shaped plate one, and the upper left side of an L-shaped plate two is fixedly connected to a protective frame two.

[0012] The above technical solution ensures that the left side of the protective frame is fixedly connected to the upper right side of the L-shaped plate, which guarantees a tight connection and stability between the two. This effectively disperses external impacts in practical applications, thereby better protecting the safety of internal components.

[0013] As a further description of the above technical solution:

[0014] The connecting assembly includes a connecting plate, the right side of which is fixedly connected to the middle left side of an L-shaped plate, and a pre-drilled hole is provided in the middle of the connecting plate.

[0015] The above technical solution ensures the stability and reliability of the connection between the right side of the connecting plate and the left side of the L-shaped plate. The reserved hole facilitates subsequent installation or connection operations, allowing it to be smoothly connected with other components, thereby further improving the practicality and functionality of the overall structure.

[0016] As a further description of the above technical solution:

[0017] The installation assembly includes a second connecting plate, the left side of which is fixedly connected to the middle right side of the second L-shaped plate, and a second reserved hole is provided in the middle of the second connecting plate.

[0018] The above technical solution further enhances the functionality and practicality of the entire installation assembly by reserving hole two.

[0019] As a further description of the above technical solution:

[0020] A protective plate is fixedly connected to the bottom left side of the L-shaped plate one, and a protective plate is fixedly connected to the bottom right side of the L-shaped plate two.

[0021] Through the above technical solution: a protective plate is fixedly connected to the bottom left side of the L-shaped plate, which provides additional protection to prevent external objects from damaging the bottom left side of the L-shaped plate.

[0022] As a further description of the above technical solution:

[0023] The right side of the first protective frame is slidably connected to the left outer wall of the solid tube, and the left side of the second protective frame is slidably connected to the right outer wall of the solid tube.

[0024] Through the above technical solution, the protective frame can be slidably connected to the left side of the solid tube, thereby ensuring adaptability in application scenarios and meeting diverse needs under complex working conditions.

[0025] As a further description of the above technical solution:

[0026] The adjacent sides of bolt one and bolt two are engaged with the inner walls of the corresponding positioning holes, and the outer wall of the support plate is slidably connected to the inner wall of the corresponding hole three.

[0027] The above technical solution ensures the stability and accuracy of both bolts during installation by having bolt one and bolt two engage with the inner wall of their respective positioning holes on their adjacent sides.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the hollow tube is replaced with a solid tube, and the solid tube is fixed by bolt one and bolt two. Compared with the hollow tube, the solid tube has the problem of stress concentration due to the thin wall thickness, and has a stronger ability to resist bending deformation and torsion. The fixing of the solid tube forms a stable constraint structure, which avoids the axial movement and lateral swing of the solid tube, reduces the risk of fatigue fracture caused by loosening at the connection, and can withstand high frequency impact, resist moisture corrosion, and is suitable for the complex environment of cold rolling.

[0030] 2. In this utility model, when an impact occurs, spring plate one and spring plate two can buffer the L-shaped plate one on the left side and the L-shaped plate two on the right side of the solid tube. At the same time, during the process, the elastic block one on the left side and the elastic block two on the right side of the support plate will also be compressed and buffered. The multiple buffer structure can effectively absorb the impact energy, prevent the L-shaped plate one, the solid tube and the L-shaped plate two from deforming and cracking due to excessive instantaneous impact force, extend their service life, avoid the impact of structural failure on the continuity of strip steel processing and reduce the number of downtime maintenance. Attached Figure Description

[0031] Figure 1 This is a perspective view of the front side of the solid tube of a counterweight device for a cold-rolled looper connecting frame proposed in this utility model;

[0032] Figure 2 This is a top view of an L-shaped plate of a cold-rolled looper connecting frame counterweight device proposed in this utility model;

[0033] Figure 3 This is a side view of an L-shaped plate of a cold-rolled looper connecting frame counterweight device proposed in this utility model;

[0034] Figure 4 This is a split view of the bolts of a counterweight device for a cold-rolled looper connecting frame proposed in this utility model;

[0035] Figure 5 This is a split view of the bolts in the counterweight device for a cold-rolled looper connecting frame proposed in this utility model;

[0036] Figure 6 This is a split view of the fastening sleeve of the counterweight device for a cold-rolled looper connecting frame proposed in this utility model.

[0037] Legend:

[0038] 1. Solid tube; 2. Anti-breakage mechanism; 201. L-shaped plate one; 202. Hole one; 203. Bolt one; 204. L-shaped plate two; 205. Hole two; 206. Bolt two; 207. Positioning hole; 208. Protective component; 2081. Protective frame one; 2082. Protective frame two; 209. Connecting component; 2091. Connecting plate one; 2092. Reserved hole one; 210. Installation component; 2101. Connecting plate two; 2102. Reserved hole two; 3. Buffer mechanism; 301. Elastic block one; 302. Support plate; 303. Elastic block two; 304. Hole three; 305. Spring plate one; 306. Spring plate two; 4. Fastening sleeve; 5. Protective plate one; 6. Protective plate two. Detailed Implementation

[0039] 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.

[0040] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a counterweight device for a cold-rolled looper connecting frame, comprising a solid tube 1, a fastening sleeve 4 fixedly connected to the middle of the solid tube 1, anti-breakage mechanisms 2 arranged on the left and right sides of the solid tube 1 to improve the stability of the connecting structure, and buffer mechanisms 3 arranged on the front and rear sides of the solid tube 1 to improve the buffering effect of the structure. The anti-breakage mechanism 2 includes an L-shaped plate 201, the right side of which is installed on the left side of the solid tube 1, and a central opening in the upper middle part of the L-shaped plate 201. Two holes 202 are provided, and bolts 203 are threadedly connected to the inner wall of holes 202. An L-shaped plate 204 is installed on the right side of the solid tube 1. Two holes 205 are provided in the upper middle part of the L-shaped plate 204. Bolts 206 are threadedly connected to the inner wall of holes 205. Positioning holes 207 are provided on both the left and right sides of the solid tube 1. A protective component 208 is provided on the outer wall of the solid tube 1. A connecting component 209 is provided on the left side of the L-shaped plate 201. An installation component 210 is provided on the right side of the L-shaped plate 204.

[0041] Specifically, a fastening sleeve 4 is fixedly connected to the middle of the solid tube 1, ensuring the stability of the overall structure and improving the device's resistance to deformation. To further enhance the reliability of the connection structure, especially under high-intensity working conditions, anti-breakage mechanisms 2 are set on the left and right sides of the solid tube 1 to enhance the stability of the connection and effectively prevent breakage caused by external forces during use, thereby extending the service life of the device. The buffer mechanism 3 can effectively absorb and disperse the energy generated by external impacts, reduce damage to the internal structure, and ensure the stable operation of the device under complex working conditions. The right side of the L-shaped plate 201 is installed on the left side of the solid tube 1. The inner wall of the hole 202 is threaded with bolt 203, and the inner wall of the hole 205 is also fixed with bolt 206 through a high-precision threaded connection. Positioning holes 207 are opened on both the left and right sides of the solid tube 1. These positioning holes 207 can effectively improve the accuracy and convenience of installation and reduce errors in the assembly process.

[0042] Please see the appendix Figure 4 - Appendix Figure 6 The buffer mechanism 3 includes two elastic blocks 301. The left side of each elastic block 301 is fixedly connected to the right side of the protective plate 5. The right side of each elastic block 301 is fixedly connected to a support plate 302. The right side of each support plate 302 is fixedly connected to an elastic block 303. The right side of the elastic block 303 is fixedly connected to the left side of the L-shaped plate 204. The fastening sleeve 4 has two holes 304 in the middle. The outer wall of the bolt 203 is fixedly connected to a spring plate 305. The outer wall of the bolt 206 is fixedly connected to a spring plate 306.

[0043] Specifically, the left side of elastic block 301 is connected to the right side of protective plate 5, ensuring the stability and reliability of the structure. Support plates 302 are fixedly connected to the right side of elastic block 301. These support plates 302 not only provide additional support force but also further enhance the stability of the entire mechanism. Another set of elastic blocks 303 are also fixedly connected to the right side of support plates 302. The right side of these elastic blocks 303 is fixedly connected to the left side of L-shaped plate 204, forming a complete buffer system. Spring plates 305 are fixedly connected to the outer wall of bolt 203, improving its ability to adapt to different working environments. Spring plates 306 enable bolt 206 to better distribute pressure and extend its service life during the tightening process.

[0044] Please see the appendix Figure 2 - Appendix Figure 4The connecting component 209 includes a connecting plate 2091, the right side of which is fixedly connected to the middle left side of the L-shaped plate 201. A reserved hole 2092 is provided in the middle of the connecting plate 2091. The adjacent sides of bolts 203 and 206 are engaged with the inner wall of the corresponding positioning hole 207. The outer wall of the support plate 302 is slidably connected to the inner wall of the corresponding hole 304. The mounting component 210 includes a connecting plate 2101, the left side of which is fixedly connected to the middle right side of the L-shaped plate 204. A reserved hole 2102 is provided in the middle of the connecting plate 2101.

[0045] Specifically, the connecting component 209 consists of a connecting plate 2091, the right side of which is fixedly connected to the middle left side of the L-shaped plate 201. A pre-drilled hole 2092 is provided for subsequent installation and adjustment. The adjacent sides of bolts 203 and 206 engage with the inner walls of the corresponding positioning holes 207 to ensure the stability and reliability of the connection. The outer wall of the support plate 302 is slidably connected to the inner wall of the corresponding hole 304, making the structure more adaptable during installation and use.

[0046] Please see the appendix Figure 3 - Appendix Figure 5 A protective plate 5 is fixedly connected to the bottom left side of L-shaped plate 1 201, and a protective plate 6 is fixedly connected to the bottom right side of L-shaped plate 204. The protective assembly 208 includes a protective frame 1 2081. The left side of the protective frame 1 2081 is fixedly connected to the upper right side of L-shaped plate 1 201. A protective frame 2082 is fixedly connected to the upper left side of L-shaped plate 204. The right side of the protective frame 1 2081 is slidably connected to the outer left side of solid tube 1, and the left side of the protective frame 2082 is slidably connected to the outer right side of solid tube 1.

[0047] Specifically, L-shaped plate 1 201 is fixedly connected to protective plate 1 5 at its bottom left side to ensure the protective performance of this area. L-shaped plate 2 204 is also fixedly connected to protective plate 2 6 at its bottom right side to provide corresponding protection. The left side of protective frame 1 2081 is fixedly connected to the upper right side of L-shaped plate 1 201. At the same time, the upper left side of L-shaped plate 2 204 is also connected to protective frame 2082 in the same way to enhance the stability of the overall structure.

[0048] Working principle: Replace the hollow tube with a solid tube 1, and place the solid tube 1 between protective frame 1 2081 and protective frame 2 2082. Then, use bolt 1 203 to pass through hole 1 202 and engage with positioning hole 207 on the left side of the solid tube 1, and use bolt 2 206 to pass through L-shaped plate 2 204 and engage with positioning hole 207 on the right side of the solid tube 1 to fix the solid tube 1. Since the solid tube 1 does not have the stress concentration problem caused by the thin wall thickness compared with the hollow tube, it has a stronger ability to resist bending deformation and torsion. L-shaped plate 1 201 and L-shaped plate 2 204 are fixed to the solid tube 1 by bolt 1 203 and bolt 2 206, forming a stable constraint structure, avoiding axial movement and lateral swing of the solid tube 1, reducing the risk of fatigue fracture caused by loosening at the connection, and can withstand high frequency impact, resist moisture corrosion, and is suitable for the complex environment of cold rolling.

[0049] When an impact occurs, spring plate 305 and spring plate 306 can buffer the L-shaped plate 201 on the left side and the L-shaped plate 204 on the right side of the solid tube 1. At the same time, the elastic block 301 on the left side and the elastic block 303 on the right side of the support plate 302 are also compressed and buffered during the process. The multiple buffer structure can effectively absorb the impact energy, prevent the L-shaped plate 201, solid tube 1 and L-shaped plate 204 from deforming and cracking due to excessive instantaneous impact force, and extend their service life. The buffering process reduces the vibration and displacement caused by the impact, prevents the connection between solid tube 1 and L-shaped plate 201 and L-shaped plate 204 from loosening, and ensures that the cold rolling looper trolley connection structure can remain stable after the impact, avoids the impact on the continuity of strip steel processing due to structural failure, and reduces the number of downtime maintenance.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A counterweight device for a cold-rolled looper connecting frame, comprising a solid tube (1), characterized in that: A fastening sleeve (4) is fixedly connected to the middle of the solid tube (1). Anti-breakage mechanisms (2) are provided on the left and right sides of the solid tube (1). The anti-breakage mechanisms (2) are used to improve the stability of the connection structure. Buffer mechanisms (3) are provided on the front and rear sides of the solid tube (1). The buffer mechanisms (3) are used to improve the buffering effect of the structure. The anti-breakage mechanism (2) includes an L-shaped plate (201) with its right side installed on the left side of the solid tube (1). The upper middle part of the L-shaped plate (201) has two holes (202), and the inner wall of the holes (202) is threaded with bolts (203). The right side of the solid tube (1) is equipped with an L-shaped plate (204), and the upper middle part of the L-shaped plate (204) has two holes (205), and the inner wall of the holes (205) is threaded with bolts (206). The left and right sides of the solid tube (1) are provided with positioning holes (207). The outer wall of the solid tube (1) is provided with a protective component (208). The left side of the L-shaped plate (201) is provided with a connecting component (209), and the right side of the L-shaped plate (204) is provided with an installation component (210).

2. The counterweight device for a cold-rolled looper connecting frame according to claim 1, characterized in that: The buffer mechanism (3) includes two elastic blocks (301). The left side of each elastic block (301) is fixedly connected to the right side of the protective plate (5). The right side of each elastic block (301) is fixedly connected to a support plate (302). The right side of each support plate (302) is fixedly connected to an elastic block (303). The right side of the elastic block (303) is fixedly connected to the left side of the L-shaped plate (204). The fastening sleeve (4) has two holes (304) in the middle. The outer wall of the bolt (203) is fixedly connected to a spring plate (305). The outer wall of the bolt (206) is fixedly connected to a spring plate (306).

3. The counterweight device for a cold-rolled looper connecting frame according to claim 1, characterized in that: The protective component (208) includes a protective frame one (2081), the left side of the protective frame one (2081) is fixedly connected to the upper right side of the L-shaped plate one (201), and the upper left side of the L-shaped plate two (204) is fixedly connected to the protective frame two (2082).

4. The counterweight device for a cold-rolled looper connecting frame according to claim 1, characterized in that: The connecting component (209) includes a connecting plate (2091), the right side of which is fixedly connected to the middle left side of an L-shaped plate (201), and a pre-drilled hole (2092) is provided in the middle of the connecting plate (2091).

5. The counterweight device for a cold-rolled looper connecting frame according to claim 1, characterized in that: The mounting assembly (210) includes a second connecting plate (2101), the left side of which is fixedly connected to the middle right side of the second L-shaped plate (204), and a second reserved hole (2102) is provided in the middle of the second connecting plate (2101).

6. The counterweight device for a cold-rolled looper connecting frame according to claim 1, characterized in that: A protective plate 1 (5) is fixedly connected to the bottom left side of the L-shaped plate 1 (201), and a protective plate 2 (6) is fixedly connected to the bottom right side of the L-shaped plate 2 (204).

7. The counterweight device for a cold-rolled looper connecting frame according to claim 3, characterized in that: The right side of the first protective frame (2081) is slidably connected to the left outer wall of the solid tube (1), and the left side of the second protective frame (2082) is slidably connected to the right outer wall of the solid tube (1).

8. The counterweight device for a cold-rolled looper connecting frame according to claim 2, characterized in that: The adjacent sides of bolt one (203) and bolt two (206) are engaged with the inner wall of the corresponding positioning hole (207), and the outer wall of the support plate (302) is slidably connected to the inner wall of the corresponding hole three (304).

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