Secondary cooling carrier roller device

Abstract

The utility model discloses a secondary cooling carrier roller device which comprises a supporting frame, a cold roller assembly and a cooling assembly. A hollow roller shaft is sleeved with a sleeve, the inner wall of the sleeve is connected with a V-shaped oil storage pipe through a fixing plate, and the middle of the oil storage pipe is communicated with a connecting ring pipe and an oil conveying pipe. Labyrinth plugging blocks and built-in spring rods are arranged at the two ends of the oil storage pipe, and the top ends of the spring rods are connected with guide slopes with plugging pieces. Bearings and labyrinth plates are arranged on the two sides of the sleeve, heat dissipation bent grooves are formed in the outer side of the hollow roller shaft, and the rotating pipe is connected with the water sump and the water pipe. The device realizes automatic supply of lubricating oil through rotating centrifugal force, and guides the inclined plane to accurately guide the lubricating oil to the bearing; heat exchange is enhanced by winding airflow and the heat dissipation bent grooves, and the cooling efficiency is improved by a water circulation system; and the labyrinth plate obstructs external impurities. The self-adaptive lubricating device has the advantages of self-adaptive lubrication, efficient heat dissipation, reliable sealing and the like, oil consumption can be reduced, the service life is prolonged, and the maintenance frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of secondary cooling idler roller technology, specifically a secondary cooling idler roller device. Background Technology

[0002] In the continuous casting process of metallurgical production, the performance of the secondary cooling roller device directly affects the quality of the cast billet and the production efficiency. Traditional roller devices have many technical defects: the open structure of the lubrication system leads to easy loss of lubricating oil, requiring frequent manual oil replenishment, and lacks an adaptive oil supply mechanism; the heat dissipation system is inefficient and cannot adapt to high-temperature conditions, often leading to thermal deformation problems; the structural design has fixed oil circuits, increasing the maintenance frequency, and the oil-air lubrication leads to excessive oil consumption.

[0003] While existing improvement solutions attempt to optimize sealing or cooling structures, they cannot meet the industry's urgent needs for reducing lubricant consumption, decreasing maintenance frequency, and increasing bearing life.

[0004] A two-cooling idler roller device is proposed to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a secondary cooling idler roller device to solve the many technical defects of the traditional idler roller device mentioned in the background art: the open structure of the lubrication system leads to easy loss of lubricating oil, requiring frequent manual oil replenishment, and lacks an adaptive oil supply mechanism; the heat dissipation system is inefficient and difficult to adapt to high-temperature working conditions, often leading to thermal deformation problems; the structural design has a fixed oil circuit, which increases the maintenance frequency, and the oil-air lubrication leads to excessive oil consumption.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dual-cooling idler roller device, comprising a pair of support frames;

[0007] A cold roller assembly is provided between the two support frames. Cooling components are provided on the outer side of each support frame. The cold roller assembly includes a hollow roller shaft. A sleeve is fitted around the outside of the hollow roller shaft. Two pairs of fixing plates are symmetrically fixed to the inner wall of the sleeve. A V-shaped oil storage pipe is fixedly connected to the same pair of fixing plates. The same connecting ring pipe is fixedly connected to the middle of the two V-shaped oil storage pipes. An oil delivery pipe is fixedly connected to one side of the connecting ring pipe.

[0008] The V-shaped oil reservoir tube has labyrinth sealing blocks inside both ends. The V-shaped oil reservoir tube has a pair of built-in spring rods at both ends. The built-in spring rods are fixed to the inner wall of the sleeve. The top of the built-in spring rods is fixedly connected to a guide slope. The top of the guide slope is fixedly connected to a sealing plate. The sealing plate is attached to the outer side of the end of the V-shaped oil reservoir tube.

[0009] The sleeve has bearings and labyrinth plates symmetrically fixedly installed inside both sides.

[0010] Preferably, the labyrinth sealing block is fixed inside the port of the V-shaped oil reservoir, and the guide ramp is fixedly connected to the piston end of the built-in spring rod.

[0011] Preferably, the hollow roller shaft has a clearance hole on its outside, and a sealing nut is movably embedded inside the clearance hole.

[0012] Preferably, the oil pipeline is inserted into the sealing nut and threaded into the connecting ring pipe.

[0013] Preferably, the inner side of the bearing is fixedly connected to the hollow roller shaft, the hollow roller shaft movably passes through the middle of the labyrinth plate, and the labyrinth plate is located on the side of the bearing closer to the support frame.

[0014] Preferably, the cold roller assembly includes a rotating tube rotatably mounted on the top of the support frame, two rotating tubes are respectively fixed to one end flange of the hollow roller shaft, a water tank is fixedly connected to the side of the support frame away from the cold roller assembly, the water tank is sleeved outside one end of the rotating tube, and a connecting water pipe is fixedly connected to one side of the water tank.

[0015] Preferably, the hollow roller shaft has a heat dissipation groove on its outer side.

[0016] Compared with the prior art, the beneficial effects of this utility model are: this dual-cooling idler roller device, with its centrifugal force-driven adaptive lubrication system and cavity airflow circulation heat dissipation structure, achieves precise self-supply of lubricating oil and efficient heat exchange, significantly reducing maintenance requirements and extending service life. The specific details are as follows:

[0017] 1. The centrifugal force generated by the rotation of the sleeve drives the guide ramp and the sealing plate to move in tandem, causing the lubricating oil in the V-shaped oil reservoir to flow in a directional manner under the action of centrifugal force. After seeping out through the labyrinth sealing block, the lubricating oil is precisely guided to the bearing along the guide ramp to achieve automatic lubrication. At the same time, the cavity formed by the V-shaped oil reservoir and the fixed plate during rotation generates a swirling airflow. Combined with the enhanced heat exchange effect of the heat dissipation groove, the heated airflow comes into full contact with the low-temperature hollow roller shaft, forming a continuous and effective cooling cycle. This design not only realizes the recycling of lubricating oil and greatly reduces oil consumption, but also automatically completes the lubrication process through mechanical movement, significantly reducing the need for manual maintenance and extending the service life of key components.

[0018] 2. The heat dissipation groove significantly improves heat exchange efficiency by increasing the surface area of ​​the hollow roller shaft, enabling rapid cooling of the high-temperature airflow within the cavity; the unique structure of the labyrinth plate effectively blocks the intrusion of external impurities, while forming a protective air curtain with the vaporized lubricating oil, maintaining a clean bearing working environment and enhancing operational stability; the water tank, through a cooling water circulation system formed by connecting water pipes, works in conjunction with the rotating tube to further enhance the overall device's heat dissipation capacity; this multi-layered cooling and protection design not only ensures reliable operation of the equipment under high-temperature conditions but also significantly reduces energy consumption through optimized thermal management, achieving efficient and stable continuous operating performance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the front cross-section structure of this utility model;

[0021] Figure 3 for Figure 2 Enlarged structural diagram at point B;

[0022] Figure 4 for Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the installation structure connecting the ring pipe and the V-shaped oil storage pipe.

[0024] In the diagram: 1. Support frame; 2. Cold roller assembly; 201. Hollow roller shaft; 202. Sleeve; 203. Fixing plate; 204. V-shaped oil storage pipe; 205. Labyrinth sealing block; 206. Built-in spring rod; 207. Guide slope; 208. Sealing plate; 209. Bearing; 210. Labyrinth plate; 211. Alternating hole; 212. Sealing nut; 213. Connecting ring pipe; 214. Oil delivery pipe; 3. Cooling assembly; 301. Rotating pipe; 302. Water tank; 303. Connecting water pipe; 304. Heat dissipation bend. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-5This utility model provides a technical solution: a dual-cooling roller device, comprising a pair of support frames 1; a cooling roller assembly 2 is arranged between the two support frames 1, and a cooling assembly 3 is arranged on the outer side of each support frame 1. The cooling roller assembly 2 includes a hollow roller shaft 201, and a sleeve 202 is sleeved on the outside of the hollow roller shaft 201. Two pairs of fixing plates 203 are symmetrically fixedly connected to the inner wall of the sleeve 202. A V-shaped oil storage pipe 204 is fixedly connected to the same pair of fixing plates 203. A connecting ring pipe 213 is fixedly connected to the middle of the two V-shaped oil storage pipes 204, and an oil delivery pipe 214 is fixedly connected to one side of the connecting ring pipe 213. When the sleeve 202 rotates, the cavity formed by the V-shaped oil storage pipe 204 and the fixing plate 203 generates a swirling airflow, while the lubricating oil flows along the pipe under the action of centrifugal force.

[0027] The V-shaped oil reservoir 204 has labyrinth sealing blocks 205 inserted at both ends. A pair of built-in spring rods 206 are fixed to the inner wall of the sleeve 202 at both ends. A guide ramp 207 is fixedly connected to the top of each spring rod 206, and a sealing plate 208 is fixedly connected to the top of the guide ramp 207. The sealing plate 208 is fitted against the outer side of the end of the V-shaped oil reservoir 204. When the sleeve 202 rotates, the built-in spring rods 206 contract under centrifugal force, causing the sealing plate 208 to move, allowing lubricating oil to seep out of the labyrinth sealing blocks 205.

[0028] The sleeve 202 has bearings 209 and labyrinth plates 210 symmetrically fixedly installed on both sides. The labyrinth plates 210 can effectively prevent external impurities from entering the bearings 209, thus improving operational stability.

[0029] The labyrinth sealing block 205 is fixed inside the port of the V-shaped oil reservoir 204, and the guide slope 207 is fixedly connected to the piston end of the built-in spring rod 206. The leaked lubricating oil flows along the guide slope 207 to the bearing 209, achieving automatic lubrication;

[0030] The hollow roller shaft 201 has a clearance hole 211 on its exterior, and a sealing nut 212 is movably embedded inside the clearance hole 211. This design facilitates installation and maintenance;

[0031] The oil delivery pipe 214 is inserted into the sealing nut 212 and threaded into the connecting ring pipe 213. This connection method ensures the sealing of the lubricating oil delivery channel;

[0032] The inner side of the bearing 209 is fixedly connected to the hollow roller shaft 201, and the hollow roller shaft 201 moves through the middle of the labyrinth plate 210. The labyrinth plate 210 is located on the side of the bearing 209 closer to the support frame 1.

[0033] This layout optimizes the sealing effect;

[0034] The cooling roller assembly 2 includes two rotating tubes 301 rotatably mounted on the top of the support frame 1. Each of the two rotating tubes 301 is fixed to a flange at one end of a hollow roller shaft 201. A water tank 302 is fixedly connected to the side of the support frame 1 away from the cooling roller assembly 2. The water tank 302 is fitted around one end of the rotating tubes 301, and a connecting water pipe 303 is fixedly connected to one side of the water tank 302. The water circulation system achieves efficient heat dissipation through the rotating tubes 301.

[0035] The hollow roller 201 has a heat dissipation groove 304 on its outer side. The heat dissipation groove 304 increases the heat exchange area, allowing the heated airflow to fully contact the low-temperature hollow roller 201, thereby improving the cooling effect.

[0036] Working principle: Before using this type of secondary cooling idler roller device, it is necessary to check the overall condition of the device to ensure that it can operate normally. Figure 1 - Figure 5 As shown, when the sleeve 202 rotates due to lifting the product, the V-shaped oil storage pipe 204 will generate a swirling airflow in the cavity between the fixed plate 203 and the sleeve 202. The heat dissipation groove 304 increases the surface area of ​​the outer side of the hollow roller shaft 201. The heated airflow in the cavity comes into full contact with the low-temperature outer side of the hollow roller shaft 201 through the heat dissipation groove 304, thus improving the cooling effect.

[0037] As the sleeve 202 rotates, the built-in spring rod 206 contracts due to centrifugal force, causing the guide slope 207 and the sealing plate 208 to move. This causes the sealing plate 208 to move and avoid being positioned outside the V-shaped oil storage pipe 204. The lubricating oil inside the V-shaped oil storage pipe 204 and the connecting ring pipe 213 moves along the pipe of the V-shaped oil storage pipe 204 to both ends due to centrifugal force. This allows the lubricating oil to seep out of the labyrinth sealing block 205 and fall onto the guide slope 207. It then flows along the guide slope 207 towards the bearing 209. Some of the oil drips directly onto the bearing 209 for adaptive lubrication, while the rest vaporizes due to the warm environment and then approaches the bearing 209 with the gas flow and re-liquefies. Ultimately, this device can significantly reduce oil consumption, increase the service life of the idler roller, reduce the need for manual oiling, and reduce maintenance burden.

[0038] The labyrinth plate 210 can prevent external impurities from entering the bearing 209, thereby increasing the stability of the bearing 209 during operation.

[0039] By removing the sealing nut 212, lubricating oil can be injected into the oil supply pipe 214, thereby replenishing the oil in the connecting ring pipe 213 and the V-shaped oil reservoir pipe 204.

[0040] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A two-cooling idler roller device, comprising a pair of support frames (1); Its features are, Also includes: A cold roller assembly (2) is provided between the two support frames (1). Cooling components (3) are provided on the outer side of each support frame (1). The cold roller assembly (2) includes a hollow roller shaft (201). A sleeve (202) is sleeved on the outside of the hollow roller shaft (201). Two pairs of fixing plates (203) are symmetrically fixed on the inner wall of the sleeve (202). A V-shaped oil storage pipe (204) is fixedly connected to the same pair of fixing plates (203). The same connecting ring pipe (213) is fixedly connected to the middle of the two V-shaped oil storage pipes (204). An oil delivery pipe (214) is fixedly connected to one side of the connecting ring pipe (213). The V-shaped oil storage tube (204) is filled with labyrinth sealing blocks (205) at both ends. The V-shaped oil storage tube (204) is provided with a pair of built-in spring rods (206) at both ends. The built-in spring rods (206) are fixed to the inner wall of the sleeve (202). The top of the built-in spring rods (206) is fixedly connected to a guide slope (207). The top of the guide slope (207) is fixedly connected to a sealing plate (208). The sealing plate (208) is attached to the outer side of the end of the V-shaped oil storage tube (204). The sleeve (202) has bearings (209) and labyrinth plates (210) symmetrically fixedly installed on both sides inside.

2. The secondary cooling roller device according to claim 1, characterized in that: The labyrinth sealing block (205) is fixed inside the port of the V-shaped oil reservoir (204), and the guide ramp (207) is fixedly connected to the piston end of the built-in spring rod (206).

3. The double-cooling idler roller device according to claim 1, characterized in that: The hollow roller (201) has a clearance hole (211) on its outside, and a sealing nut (212) is movably embedded inside the clearance hole (211).

4. The secondary cooling roller device according to claim 1, characterized in that: The oil pipeline (214) is inserted into the sealing nut (212) and threaded into the connecting ring pipe (213).

5. The secondary cooling roller device according to claim 1, characterized in that: The inner side of the bearing (209) is fixedly connected to the hollow roller shaft (201), and the hollow roller shaft (201) moves through the middle of the labyrinth plate (210). The labyrinth plate (210) is located on the side of the bearing (209) closer to the support frame (1).

6. The double-cooling idler roller device according to claim 1, characterized in that: The cold roller assembly (2) includes a rotating tube (301) rotatably mounted on the top of the support frame (1). The two rotating tubes (301) are respectively fixed to one end flange of the hollow roller shaft (201). A water tank (302) is fixedly connected to the side of the support frame (1) away from the cold roller assembly (2). The water tank (302) is sleeved outside one end of the rotating tube (301). A connecting water pipe (303) is fixedly connected to one side of the water tank (302).

7. A secondary cooling idler roller device according to claim 6, characterized in that: The hollow roller (201) has a heat dissipation groove (304) on its outer side.

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