A cold bed with double-drive heat dissipation and flow guide assembly

Abstract

The present application relates to the technical field of cooling bed, especially to a cooling bed with double-drive heat dissipation and flow guide assembly, comprising a cooling bed body, a roller assembly for supporting and conveying is installed inside the cooling bed body, lateral assembly through holes are arranged on both sides of the cooling bed body, external flow guide covers are fixedly assembled outside the lateral assembly through holes on the outside of the cooling bed body, the external flow guide covers on the same side of the cooling bed body are connected through copper heat dissipation pipes, and double-control end flow guide assemblies are installed inside the external flow guide covers on one side of the cooling bed body. The external flow guide covers and the copper heat dissipation pipes cooperate to form high-efficiency heat dissipation channels, and forced convection cooling of the roller contact surface is realized by combining the centrifugal blade double-drive flow guide, so that the problems of uneven heat dissipation and low cooling efficiency of the contact surface of the existing cooling bed are solved.

Description

Technical Field

[0001] This invention relates to the field of cooling bed technology, and in particular to a cooling bed equipped with a dual-drive heat dissipation and airflow guiding component. Background Technology

[0002] The cooling bed is a core auxiliary equipment in a metallurgical steel rolling production line. It primarily receives high-temperature bars, tubes, and other metal profiles after rolling, gradually cooling them from approximately 900℃ to 100-300℃. Simultaneously, it transports and arranges the profiles, ensuring the stable operation of subsequent cold shearing and finished product collection processes. Its cooling efficiency and uniformity directly determine the quality of the finished metal profiles and the production line's efficiency. Currently, the heat dissipation structure design of mainstream cooling beds is relatively traditional, with a single, fixed heat dissipation method, often relying on natural ventilation or a single forced air cooling mode from the top, lacking a targeted heat dissipation structure design for the contact surface. After the high-temperature profiles are placed on the rack and pinion bed of the cooling bed, a closed heat stagnation zone easily forms in the contact area between the profile and the bed. The heat accumulated on the contact surface cannot be quickly and efficiently dissipated, relying only on the slow heat conduction and dissipation of the profile itself. This heat dissipation defect easily leads to a significant temperature difference between the contact and non-contact surfaces of the profile, causing uneven cooling and subsequently causing quality problems such as profile bending, deformation, and residual stress, significantly reducing product accuracy and yield. Meanwhile, localized heat retention prolongs the overall cooling cycle, restricting production line efficiency and failing to meet the demands of current high-speed, high-precision, and large-scale steel rolling production. Furthermore, the existing cooling bed's roller conveyor and heat dissipation structure are independent of each other, lacking coordination, and the rotational energy of the roller conveyor itself is not utilized for auxiliary heat dissipation. Therefore, designing a cooling bed structure that integrates roller conveyor functions with efficient heat dissipation at the contact surface using roller movement is a pressing technical problem to be solved in this field. Summary of the Invention

[0003] The technical problem to be solved by the present invention is that the existing cooling bed has a simple heat dissipation structure on the contact surface, and the heat accumulation in the contact area between the profile and the bed body is difficult to dissipate quickly, resulting in uneven cooling, profile deformation and residual stress; at the same time, the energy of the roller conveyor rotation is not used for auxiliary heat dissipation, resulting in low overall heat dissipation efficiency and restricting the operating efficiency of the production line.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a cooling bed with a dual-drive heat dissipation and flow guiding component, including a cooling bed body, a roller conveyor assembly for supporting the conveyor is installed inside the cooling bed body, the roller conveyor assembly is composed of several horizontally placed metal rollers, lateral mounting through holes are provided on both sides of the cooling bed body, an external flow guiding shroud is fixedly mounted on the outside of the lateral mounting through hole opening on the outside of the cooling bed body, the external flow guiding shrouds on the same side of the cooling bed body are connected by copper heat dissipation pipes, and a dual-control end flow guiding component is installed inside the external flow guiding shroud on one side of the cooling bed body.

[0005] Furthermore, the metal roller body is movably connected to the cooling bed body by inserting the roller shafts on both sides into the lateral assembly through holes.

[0006] Furthermore, a dual-control end flow guide assembly is installed inside the external flow guide shroud on one side of the cooling bed body.

[0007] Furthermore, the dual-control end guide assembly includes an external motor and a side-mounted control support rod fixed at the middle position of the outer side of the external guide shroud, a horizontal adjustment shroud set inside the external guide shroud, centrifugal blades movably assembled inside the horizontal adjustment shroud, and a switching shaft fixed at the center position of the centrifugal blades.

[0008] Furthermore, the end of the roller shaft of the metal roller body near the dual-control end guide assembly is equipped with an inner shaft rod that cooperates with the switching shaft cylinder via a fixed bracket, and an outer shaft rod that cooperates with the switching shaft cylinder is coaxially fixed on the output shaft of the external motor.

[0009] Furthermore, a side-mounted return pipe is fixedly installed on the lower outer side of the cooling bed body.

[0010] Furthermore, a liquid storage tank connected to a side-mounted reflux pipe is fixedly mounted on the outside of the cooling bed body.

[0011] Furthermore, a removable filter screen is installed inside the liquid storage tank.

[0012] Furthermore, the metal roller body has an internal heat exchange channel that communicates with the roller shafts on both sides.

[0013] Furthermore, the outer wall of the cooling bed body is fixed with lateral external mounting points for supporting the copper heat dissipation pipes and the side-mounted return pipes.

[0014] The beneficial effects of this invention are as follows: By using an external motor in the dual-control end guide assembly to drive the switching cylinder in coordination with the roller shaft of the metal roller, the centrifugal blades are rotated, achieving internal forced air flow and dual-channel heat dissipation driven by the shaft end. This solves the problems of the existing cooling bed heat dissipation structure being singular and the roller movement energy not being utilized. By connecting the guide spaces of multiple roller units through the external guide shroud, and forming a heat dissipation channel that extends continuously along the length of the cooling bed with the help of copper heat dissipation pipes, the heat dissipation blind spots between rollers are eliminated, solving the problems of heat accumulation and uneven cooling on the contact surface. By using the internal heat exchange channel opened inside the metal roller to form a circulating cooling loop with the side-mounted return pipe and liquid storage tank, contact heat exchange on the roller surface is achieved, solving the problem of profile deformation caused by the large temperature difference between the contact surface and the non-contact surface. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1This is a schematic diagram of the structure on the right side of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure on the left side of the present invention.

[0018] Figure 3 This is a cross-sectional view of the internal heat exchange channel of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 100. Cooling bed body; 110. Roller assembly; 111. Metal roller body; 112. Roller shaft; 113. Internal heat exchange channel; 200. Lateral mounting through hole; 300. External flow guide shroud; 310. Copper heat dissipation pipe; 400. Dual-control end flow guide assembly; 410. External motor; 411. Outer shaft; 420. Side-mounted adjustment support rod; 430. Horizontal adjustment shroud; 440. Centrifugal blades; 450. Switching shaft cylinder; 451. Inner shaft; 500. Side-mounted return pipe; 600. Liquid storage tank; 610. Removable filter screen; 700. Lateral external mounting point. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0021] like Figures 1-3 As shown, the cooling bed of the present invention includes a cooling bed body 100, which is a long strip frame structure extending along the direction of the steel rolling production line. Several horizontally arranged metal rollers 111 are installed inside the cooling bed body 100 along its length to form a roller conveyor assembly 110. The metal rollers 111 are arranged in parallel to receive and transport the high-temperature metal profiles output from the rolling mill. The roller shafts 112 on both sides of the metal rollers 111 are inserted into the lateral mounting through holes 200 on both sides of the cooling bed body 100 to achieve a movable connection, allowing the metal rollers 111 to rotate freely and, driven by a motor, to propel the profiles stepwise along the length of the cooling bed.

[0022] External flow guide shrouds 300 are fixedly mounted on the outer wall of the cooling bed body 100 at the corresponding outer opening positions of the lateral mounting through holes 200. The external flow guide shrouds 300 have a trumpet-shaped shell structure, with the larger end facing the end of the metal roller body 111 and the smaller end facing the outside of the cooling bed, forming a flow channel from the end of the roller conveyor outward. The external flow guide shrouds 300 located on the same side of the cooling bed body 100 are interconnected by copper heat dissipation pipes 310. The copper heat dissipation pipes 310 are arranged parallel to the length of the cooling bed body 100, and can be filled with cooling medium. Their high thermal conductivity can quickly transfer the heat of the high-temperature gas inside the external flow guide shrouds 300 to the external environment.

[0023] A dual-control end flow guide assembly 400 is installed inside the outermost external flow guide shroud 300 on one side (usually the operating side) of the cooling bed body 100. This assembly includes an externally mounted motor 410 and a side-mounted adjustment support rod 420 fixedly installed at the center of the outer side of the external flow guide shroud 300, and a horizontal adjustment shroud 430, centrifugal blades 440, and a switching shaft cylinder 450 arranged sequentially along the axial direction inside the external flow guide shroud 300. The output shaft of the externally mounted motor 410 extends into the external flow guide shroud 300, and an outer shaft rod 411 is coaxially fixed to the output shaft.

[0024] An inner shaft 451 is mounted on the end of the roller shaft 112 of the metal roller body 111 near the dual-control end guide assembly 400 via a fixed bracket. The inner shaft 451 cooperates with the switching cylinder 450. The switching cylinder 450 is a composite bushing structure, and its inner diameter matches the outer diameter of the outer shaft 411 and the outer diameter of the inner shaft 451. This allows the switching cylinder 450 to be coaxially connected to the outer shaft 411 and driven to rotate by an external motor 410, or coaxially connected to the inner shaft 451 and driven to rotate by the rotation of the metal roller body 111. The axial position of the switching cylinder 450 is controlled by the side-mounted adjustable support rod 420 to achieve the switching of the drive source: when the switching cylinder 450 is engaged with the outer shaft rod 411, the centrifugal blades 440 are independently driven to rotate by the external motor 410 for auxiliary heat dissipation when the cooling bed is stopped or at low speed; when the switching cylinder 450 is engaged with the inner shaft rod 451, the centrifugal blades 440 are driven to rotate by the rotation of the metal roller body 111 itself, and the mechanical energy of the roller conveyor process is used to achieve self-driven heat dissipation without additional energy consumption.

[0025] Centrifugal blades 440 are movably mounted inside the horizontal adjustment shroud 430, which can slide horizontally inside the external guide shroud 300. The axial position of the horizontal adjustment shroud 430 is adjusted via a side-mounted control rod 420, thereby changing the gap between the centrifugal blades 440 and the outlet of the external guide shroud 300, achieving precise control of airflow rate and direction. When rotating, the centrifugal blades 440 force hot air from inside the external guide shroud 300 outwards, creating a negative pressure zone inside the external guide shroud 300. Through the connection of the copper heat dissipation pipes 310, hot air from other external guide shrouds 300 on the same side is also discharged, forming a continuous suction-type heat dissipation along the length of the cooling bed.

[0026] An internal heat exchange channel 113 is axially formed inside the metal roller body 111. This internal heat exchange channel 113 connects to axial channels formed inside the roller shafts 112 on both sides, forming a continuous flow channel from one end of the roller shaft 112, through the internal heat exchange channel 113, and out from the other end of the roller shaft 112. A side-mounted return pipe 500 is fixedly installed at the lower outer side of the cooling bed body 100. The side-mounted return pipe 500 extends along the length of the cooling bed and is arranged parallel to the copper heat dissipation pipe 310. A liquid storage tank 600, connected to the side-mounted return pipe 500, is fixedly mounted on the outer side of the cooling bed body 100. A removable filter screen 610 is installed inside the liquid storage tank 600 to filter impurities in the cooling medium. The side-mounted return pipe 500, the copper heat dissipation pipe 310, and the internal heat exchange channel 113 are connected by flexible pipes and joints to form a closed-loop circulation circuit. The outer wall of the cooling bed body 100 is fixed with lateral external mounting points 700 for supporting the copper heat dissipation pipe 310 and the side-mounted return pipe 500, ensuring that the pipe arrangement is neat and stable.

[0027] During operation, high-temperature profiles are fed onto the roller assembly 110 of the cooling bed by a conveyor chain. The metal rollers 111 rotate under the drive mechanism, and the profiles are conveyed stepwise along the length of the cooling bed. The rotation of the metal rollers 111 drives the centrifugal blades 440 to rotate synchronously through the inner shaft 451 and the switching cylinder 450, discharging the hot air generated at the contact surface between the profiles and the rollers through the external guide shroud 300. When the cooling bed is running at low speed or under maintenance, the switching cylinder 450 is engaged with the outer shaft 411 by the side-mounted control rod 420, and the centrifugal blades 440 are driven by the external motor 410 to maintain the heat dissipation function. Meanwhile, the cooling medium flows from the liquid storage tank 600 into the internal heat exchange channel 113 of each metal roller 111 through the side-mounted return pipe 500, and performs contact heat exchange cooling on the roller surface. The cooling medium that has absorbed heat flows back to the liquid storage tank 600 after being dissipated by the copper heat dissipation pipe 310. After being filtered by the detachable filter screen 610, it is recycled, thus realizing dual heat dissipation and cooling of the profile contact surface.

Claims

1. A cooling bed equipped with a dual-drive heat dissipation and airflow guiding component, comprising a cooling bed body (100), characterized in that: The cooling bed body (100) is equipped with a roller conveyor assembly (110) for supporting the conveyor. The roller conveyor assembly (110) is composed of several horizontally placed metal rollers (111). The cooling bed body (100) has lateral mounting through holes (200) on both sides. An external flow guide shroud (300) is fixedly mounted on the outside of the lateral mounting through hole (200) on the outside of the cooling bed body (100). The external flow guide shrouds (300) on the same side of the cooling bed body (100) are connected by copper heat dissipation pipes (310). A dual-control end flow guide assembly (400) is installed inside the external flow guide shroud (300) on one side of the cooling bed body (100).

2. The cooling bed with a dual-drive heat dissipation and airflow guiding component according to claim 1, characterized in that: The metal roller (111) is movably connected to the cooling bed body (100) by inserting the roller shafts (112) on both sides into the lateral assembly through holes (200).

3. A cooling bed with a dual-drive heat dissipation and airflow guiding component according to claim 2, characterized in that: A dual-control end flow guide assembly (400) is installed inside the external flow guide shroud (300) on one side of the cooling bed body (100).

4. A cooling bed with a dual-drive heat dissipation and airflow guiding component according to claim 3, characterized in that: The dual-control end guide assembly (400) includes an external motor (410) and a side-mounted control support rod (420) fixed at the middle position of the outer side of the external guide shroud (300), a horizontal adjustment shroud (430) set inside the external guide shroud (300), centrifugal blades (440) movably assembled inside the horizontal adjustment shroud (430), and a switching shaft cylinder (450) fixed at the center position of the centrifugal blades (440).

5. A cooling bed with a dual-drive heat dissipation and airflow guiding assembly according to claim 4, characterized in that: The metal roller (111) is connected to the roller shaft (112) of the dual-control end guide assembly (400) via a fixed bracket, and an inner shaft (451) that cooperates with the switching shaft cylinder (450) is installed on the end of the roller shaft (112) of the dual-control end guide assembly (400). An outer shaft (411) that cooperates with the switching shaft cylinder (450) is coaxially fixed on the output shaft of the external motor (410).

6. A cooling bed with a dual-drive heat dissipation and airflow guiding component according to claim 1, characterized in that: A side-mounted return pipe (500) is fixedly installed on the lower outer side of the cooling bed body (100).

7. A cooling bed with a dual-drive heat dissipation and airflow guiding assembly according to claim 6, characterized in that: The cooling bed body (100) is fixedly equipped with a liquid storage tank (600) that is connected to the side-mounted return pipe (500).

8. A cooling bed with a dual-drive heat dissipation and airflow guiding assembly according to claim 7, characterized in that: The liquid storage tank (600) is equipped with a removable filter screen (610).

9. A cooling bed with a dual-drive heat dissipation and airflow guiding component according to claim 1, characterized in that: The metal roller body (111) has an internal heat exchange channel (113) that is connected to the two side roller shafts (112).

10. A cooling bed with a dual-drive heat dissipation and airflow guiding assembly according to claim 6, characterized in that: The outer wall of the cooling bed body (100) is fixed with lateral external mounting points (700) for supporting the copper heat dissipation pipe (310) and the side-mounted return pipe (500).

Images