Tensioning device for flush roller of bar line cooling bed

Abstract

The utility model provides a bar line cooling bed flush roller tensioning device, which belongs to the technical field of steel processing and comprises a support, a lever mechanism and a counterweight component, the lever mechanism is mounted on the support, one end of the lever mechanism is connected with a chain of a cooling bed flush device, and the other end of the lever mechanism is used for mounting the counterweight component. According to the utility model, the bracket is arranged beside the cooling bed flush device, the lever mechanism is arranged on the bracket, the counterweight component is arranged at one end of the lever mechanism, and the other end of the lever mechanism is prized by lever force generated by the counterweight component, so that the chain of the cooling bed flush device is tensioned.

Description

Technical Field

[0001] This utility model relates to the field of steel processing technology, and in particular to a tensioning device for the end rollers of a bar wire cooling bed. Background Technology

[0002] After the bar stock is rolled, it is cooled on a cooling bed. Simultaneously, a head-aligning device on the cooling bed aligns the ends of the rolled stock, preparing it for the next length-cutting process. The bar cooling bed is 120 meters long, and the head-aligning device has 100 sets of head-aligning rollers. Both the head-aligning rollers and the geared motor shafts are equipped with sprockets, which drive the head-aligning rollers via chain transmission, causing the rolled stock on the head-aligning roller surface to move in the same direction, thus achieving the function of aligning the ends of the rolled stock.

[0003] The working conditions in the cooling bed area are quite harsh, with the ambient temperature of the aligning roll assembly consistently maintained at 300-350℃. The geared motors are subjected to prolonged high temperatures, leading to a high rate of motor burnout. Furthermore, the high temperatures cause chain and sprocket lubrication to fail, resulting in rapid chain and sprocket wear, causing chain stretching, slippage, tooth skipping, tooth loss, and even breakage. When 20 out of 100 aligning rolls malfunction, significant resistance is generated between the roll surface and the rolled workpiece, preventing the workpiece from moving and aligning, necessitating a shutdown for troubleshooting. Due to the high ambient temperature and the aligning rolls being 3 meters above the ground, replacing the aligning rolls, geared motors, and disassembling and assembling chains involves working at height, posing safety hazards such as falls, burns, and heatstroke, making temporary shutdowns for troubleshooting extremely difficult. Statistics show that downtime due to end-alignment roller malfunctions occurs approximately three times per month, with each troubleshooting session taking about 40-50 minutes, severely impacting production organization and operational efficiency. To address this issue, the position of the geared motor was lowered, increasing the center distance from 636mm to 1300mm, thereby reducing the motor's exposure to high temperatures. After lowering the motor's position, testing showed that the surface temperature of the geared motor decreased from 90℃ to 60℃. Furthermore, maintenance personnel can now perform disassembly, lubrication, and maintenance while standing on the cooling bed, improving maintenance efficiency and reducing operational safety risks. However, increasing the center distance between the geared motor and the end-alignment roller necessitates a longer transmission chain, potentially leading to insufficient tension and causing tooth skipping or slippage. Utility Model Content

[0004] This invention provides a tensioning device for the end rollers of a bar wire cooling bed, which solves the defects of skipped teeth and tooth loss in the prior art.

[0005] This utility model provides a bar wire cooling bed end-aligning roller tensioning device, including: a bracket, a lever mechanism and a counterweight assembly. The lever mechanism is mounted on the bracket, one end of the lever mechanism is connected to the chain of the cooling bed end-aligning device, and the other end of the lever mechanism is used to install the counterweight assembly.

[0006] According to the present invention, a bar wire cooling bed end-aligning roller tensioning device is provided, wherein the support is provided with a fulcrum, and the lever mechanism is installed on the fulcrum.

[0007] According to the present invention, a bar wire cooling bed end-aligning roller tensioning device is provided, wherein the lever mechanism includes a lever crossbar and a sprocket, the sprocket is installed at one end of the lever crossbar, and the sprocket meshes with the chain of the cooling bed end-aligning device.

[0008] According to the present invention, a bar wire cooling bed end-roller tensioning device is provided, wherein the counterweight assembly includes counterweights of different weights.

[0009] According to the present invention, a bar wire cooling bed end-aligning roller tensioning device is provided, wherein the fulcrum is a rotatable fulcrum, and the lever crossbar can rotate around the fulcrum.

[0010] According to the present invention, a bar wire cooling bed end-aligning roller tensioning device is provided, wherein the support is a telescopic rod and the height of the support can be adjusted.

[0011] According to the present invention, a bar wire cooling bed end-roller tensioning device is provided, wherein the lever crossbar can be adjusted along the fulcrum to adjust the length of the lever crossbar on both sides of the fulcrum.

[0012] According to the present invention, a bar wire cooling bed end-aligning roller tensioning device is provided, wherein the lever mechanism further includes a fixing member, which is installed at the fulcrum and is used to fix the length of the lever crossbar.

[0013] According to the present invention, a bar wire cooling bed end-aligning roller tensioning device is provided, wherein the bracket is detachably installed on one side of the reducer of the cooling bed end-aligning device.

[0014] According to the present invention, a bar wire cooling bed end-aligning roller tensioning device is provided, wherein the bracket is provided with a base, the base is provided with mounting holes, and the base is fixed by bolt assembly.

[0015] The bar wire cooling bed end-aligning roller tensioning device provided by this utility model has a bracket installed next to the cooling bed end-aligning device, and a lever mechanism installed on the bracket. By installing a counterweight component at one end of the lever mechanism, the lever force generated by the counterweight component pries the other end of the lever mechanism, thereby tightening the chain of the cooling bed end-aligning device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the bar wire cooling bed end-roller tensioning device provided by this utility model.

[0018] Figure label:

[0019] 10. Chain of the cooling bed end-aligning device;

[0020] 20. Original speed reducer;

[0021] 30. The speed reducer after it has been moved;

[0022] 40. Head-aligning roller;

[0023] 100. Bracket;

[0024] 110. Fulcrum;

[0025] 200. Leverage mechanism;

[0026] 210. Lever crossbar; 220. Sprocket;

[0027] 300. Counterweight components. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions 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.

[0029] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" indicate the direction or positional relationship, which is usually based on Figure 1 The orientation and position of the bar wire cooling bed end-aligning roller tensioning device shown are for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] This utility model provides a tensioning device for the end-roller of a bar wire cooling bed. See also: Figure 1 It includes: a support 100, a lever mechanism 200 and a counterweight assembly 300. The lever mechanism 200 is mounted on the support 100. One end of the lever mechanism 200 is connected to the chain 10 of the cooling bed end-jointing device, and the other end of the lever mechanism 200 is used to install the counterweight assembly 300.

[0033] A bracket 100 is installed next to the cooling bed end-aligning device, and a lever mechanism 200 is installed on the bracket 100. By installing a counterweight component 300 at one end of the lever mechanism 200, the lever force generated by the counterweight component 300 pryes the other end of the lever mechanism 200, thereby tightening the chain 10 of the cooling bed end-aligning device.

[0034] In one embodiment, a fulcrum 110 is provided on the support 100, and a lever mechanism 200 is mounted on the fulcrum 110. The lever mechanism 200 includes a lever crossbar 210 and a sprocket 220. The sprocket 220 is mounted on one end of the lever crossbar 210 and meshes with the chain 10 of the cooling bed end-aligning device. The fulcrum 110 is a rotatable fulcrum 110, and the lever crossbar 210 can rotate around the fulcrum 110. The length of the lever crossbar 210 on both sides of the fulcrum 110 can be adjusted along the fulcrum 110.

[0035] After adjusting the length of the lever 210 on both sides of the fulcrum 110 according to different usage requirements, the tilt angle of the lever is adjusted by installing the counterweight assembly 300, thereby completing the tensioning of the chain.

[0036] In one embodiment, the counterweight assembly 300 includes counterweights of different weights.

[0037] Different weights of counterweights are used to adjust the tilt angle of the lever 210, thereby adapting to the chain in different states.

[0038] In one embodiment, the support 100 is a telescopic rod, and the height of the support 100 can be adjusted to adapt to the cooling bed end-aligning device in different positions.

[0039] In one embodiment, the lever mechanism 200 further includes a fixing member installed at the fulcrum 110 for fixing the length of the lever bar 210.

[0040] In one embodiment, the bracket 100 is detachably mounted on one side of the reducer of the cooling bed end milling device. The bracket 100 is provided with a base, and the base is provided with mounting holes. The base is fixed by a bolt assembly.

[0041] In one embodiment, a hook is provided on one end of the lever 210 for mounting the counterweight assembly 300, and a hanging ring is installed on the counterweight assembly 300. The installation of the counterweight assembly 300 is completed by installing the hanging ring on the hook, which also facilitates the replacement of the counterweight assembly 300.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tensioning device for the end-roller of a bar wire cooling bed, characterized in that, include: The system includes a support frame, a lever mechanism, and a counterweight assembly. The lever mechanism is mounted on the support frame, with one end connected to the chain of the cooling bed end-aligning device and the other end used to mount the counterweight assembly.

2. The bar wire cooling bed end-splitting roller tensioning device according to claim 1, characterized in that, The bracket is provided with a fulcrum, and the lever mechanism is installed on the fulcrum.

3. The bar wire cooling bed end-straightening roller tensioning device according to claim 2, characterized in that, The lever mechanism includes a lever crossbar and a sprocket. The sprocket is installed at one end of the lever crossbar and engages with the chain of the cooling bed end-jointing device.

4. The bar wire cooling bed end-splitting roller tensioning device according to claim 3, characterized in that, The counterweight assembly includes counterweights of different weights.

5. The bar wire cooling bed end-splitting roller tensioning device according to claim 4, characterized in that, The fulcrum is a rotatable fulcrum, and the lever bar can rotate around the fulcrum.

6. The bar wire cooling bed end-splitting roller tensioning device according to claim 5, characterized in that, The support is a telescopic rod, and the height of the support can be adjusted.

7. The bar wire cooling bed end-splitting roller tensioning device according to claim 6, characterized in that, The length of the lever crossbar located on both sides of the fulcrum can be adjusted along the fulcrum.

8. The bar wire cooling bed end-splitting roller tensioning device according to claim 7, characterized in that, The lever mechanism also includes a fixing element, which is installed at the fulcrum and is used to fix the length of the lever bar.

9. The bar wire cooling bed end-straightening roller tensioning device according to claim 8, characterized in that, The bracket is detachably mounted on one side of the reducer of the cooling bed end mill.

10. The bar wire cooling bed end-splitting roller tensioning device according to claim 9, characterized in that, The bracket is provided with a base, and the base is provided with mounting holes, and the base is fixed by a bolt assembly.

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