Conveying roller water cooling structure

Abstract

The utility model discloses a conveying roller water cooling structure, relates to conveying roller technical field, including roller wheel and water cooling support table, said roller wheel includes centre shaft and connect the support portion of centre shaft outer wall, the inside of centre shaft is provided with water inlet chamber and backwater chamber, is provided with inner pipe between water inlet chamber and backwater chamber, and the water cooling support table is provided with water inlet chamber and backwater chamber between water inlet chamber and backwater chamber between water inlet chamber and backwater chamber. A water passing hole is formed in the end, located in the middle shaft, of the inner pipe, a flowing groove is formed in the supporting part, one end of the flowing groove is connected with the water inlet cavity, and the other end of the flowing groove is communicated with the water return cavity through the water passing hole. According to the water cooling structure of the conveying roller, the water inlet amount of the cooling liquid can be adjusted according to the temperature of the flowing-out cooling liquid, the effects of keeping the roller in a certain temperature range and preventing the roller from being overheated are achieved, meanwhile, the cooling capacity of the roller can be improved through the matched arrangement of the two water flow channels of the branch flow channels and the flow grooves, and the service life of the roller is prolonged. And the temperature difference between two ends of the roller is reduced.

Description

Technical Field

[0001] This utility model relates to the field of conveyor roller technology, and more specifically to a water-cooled structure for a conveyor roller. Background Technology

[0002] The insulated conveyor rollers inside the continuous casting billet segmentation insulation box are crucial components for ensuring the smooth transport of the billet within the box and maintaining temperature uniformity. The design of these insulated conveyor rollers must not only consider the smooth transport of the billet but also ensure good insulation performance under high-temperature conditions to minimize heat loss.

[0003] When conveying continuously cast billets, the temperature of the billets continuously transfers to the conveying rollers, causing the rollers' temperature to rise continuously. High temperatures not only affect the service life of the conveying rollers but also cause surface deformation. To address this, cooling structures are incorporated into the conveying rollers. For example, Chinese Patent Application No. 202221917318.2 discloses a water-cooled roller. This structure includes a roller shaft and a roller sleeve fitted onto the outer surface of the roller shaft. The roller shaft has a coaxial inner cavity, including an inlet cavity and an outlet cavity. A cooling channel is provided on the outer surface of the roller shaft. An inlet channel is provided inside the roller shaft, connecting to the inlet cavity. An outlet channel is provided inside the roller shaft, connecting to the outlet cavity. One end of the cooling channel is connected to the inlet channel, and the other end is connected to the outlet channel. However, this water-cooled roller still has the following problems in use:

[0004] 1. The flow rate of cooling water inside the water-cooled roller is fixed and cannot be automatically adjusted according to the temperature of the roller surface. When the temperature of the roller is too high, the fixed flow rate of cooling liquid cannot effectively cool the roller and cannot maintain the temperature of the conveyor roller within a suitable range.

[0005] 2. There is only one water inlet on the cooling channel. The water inlet is located at one end of the roller. When the temperature of the coolant rises, it will move along the cooling channel to the other end, making the temperature at the outlet end higher than that at the inlet. The large temperature difference between the two ends will have an adverse effect on the conveying roller and will also affect the conveying capacity of the continuous casting billet.

[0006] Therefore, it is necessary to propose a water-cooled structure for the conveyor roller to solve the above problems. Utility Model Content

[0007] To address the above problems, this utility model provides a water-cooled structure for a conveyor roller, which enhances the ability to cool the roller while reducing the temperature difference between the two ends.

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A water-cooled conveyor roller structure includes a roller and a water-cooled support platform. The roller includes a central shaft and a support portion connected to the outer wall of the central shaft. The central shaft has an inlet water chamber and a return water chamber inside. An inner tube is provided between the inlet water chamber and the return water chamber. A water passage hole is provided at one end of the inner tube inside the central shaft. A flow groove is provided inside the support portion. One end of the flow groove is connected to the inlet water chamber, and the other end of the flow groove is connected to the return water chamber through the water passage hole.

[0010] One end of the central shaft and inner tube extends into the water-cooled support platform. The water-cooled support platform has a first cavity and a second cavity inside. A water inlet pipe and a water return pipe are connected to the outer wall of the water-cooled support platform. The water inlet pipe extends into the first cavity, and the water return pipe extends into the second cavity. The first cavity is connected to the water inlet cavity, and the second cavity is connected to the water return cavity.

[0011] Preferably, a heat insulation sleeve is connected to the outer wall of the support, and guide edges are provided at both ends of the heat insulation sleeve, and the outer circumferential surface of the heat insulation sleeve contacts the continuously cast billet.

[0012] Preferably, a partition plate is connected between one end of the inner tube located in the water inlet cavity and the central axis, and a baffle plate is connected between the other end of the inner tube and the central axis, with water passage holes provided on the baffle plate.

[0013] Preferably, a temperature control component is connected inside the baffle, the temperature control component including a temperature sensing tube and a corrugated tube.

[0014] Preferably, the temperature sensing tube is located inside the return water cavity, and the corrugated tube is located inside the first cavity.

[0015] Preferably, the inner tube is connected to a connecting pipe extending into the second cavity, and the return water cavity is connected to the second cavity through the connecting pipe.

[0016] Preferably, a beveled ring is connected to the side wall of the first cavity, and a beveled block that cooperates with the beveled ring is connected to one end of the bellows. The distance between the beveled block and the beveled ring is controlled by the length of the bellows as it is extended.

[0017] Preferably, the support portion has a branch flow channel inside that connects the flow channel and the water inlet cavity.

[0018] Preferably, the central shaft is rotatably connected to the water-cooled support platform.

[0019] Preferably, the bottom of the water-cooled support platform is provided with bolt mounting holes.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This device has a water-cooled support platform at one end of the roller. By controlling the temperature of the water-cooled support platform, the flow rate of the coolant can be adjusted according to the temperature of the outflowing coolant. The higher the outflowing temperature, the higher the temperature of the roller. At this time, the more coolant flows in, the better the cooling effect on the roller. This helps to keep the roller within a certain temperature range and prevent it from overheating.

[0022] 2. This device is equipped with branch flow channels and flow grooves in the support section. The two cooling flow channels enhance the cooling effect on the rollers and reduce the temperature difference between the two ends of the support section, thereby extending the service life of the rollers.

[0023] 2. The device is equipped with a heat insulation sleeve on the outer ring surface of the support, which can provide excellent heat insulation and improve the heat preservation capacity when the conveyor roller transports the continuous casting billet. At the same time, it can also prevent excessive heat from being conducted to the roller, thus reducing the temperature rise of the roller. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the present invention;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a schematic diagram of the central shaft and water-cooled support platform structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the coolant flow direction in this utility model.

[0028] Figure label:

[0029] 101. Water-cooled support platform; 102. Central shaft; 103. Support section; 104. Water inlet chamber; 105. Water return chamber; 106. Inner pipe; 107. Water passage hole; 108. Flow channel; 109. First cavity; 110. Second cavity; 111. Water inlet pipe; 112. Water return pipe; 113. Heat insulation sleeve; 114. Divider plate; 115. Baffle; 116. Temperature sensing tube; 117. Corrugated pipe; 118. Connecting pipe; 119. Inclined ring; 120. Inclined block; 121. Branch flow channel. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-4 A water-cooled conveyor roller structure includes a roller and a water-cooled support platform 101. The roller is used for transporting continuously cast billets. The water-cooled support platform 101 is connected to an external water supply end and a water outlet end to deliver coolant into the interior of the roller, thereby cooling the roller. The roller includes a central shaft 102 and a support portion 103 connected to the outer wall of the central shaft 102. The interior of the central shaft 102 has an inlet chamber 104 and a return chamber 105. An inner tube 106 is provided between the inlet chamber 104 and the return chamber 105 to separate them. The outer side of the inner tube 106 is the inlet chamber 104, and the inner side is the return chamber 105. The cooling water in the inlet chamber 104 flows towards the return chamber 105. The water flows through the moving groove 108 and then from the other end of the moving groove 108 to the return water chamber 105. The inner tube 106 has a water passage hole 107 at one end located inside the central shaft 102 for cooling water to flow into the return water chamber 105. The support part 103 has a moving groove 108 inside it, which is located inside the support part 103 and close to the outer edge. When the cooling water flows through it, it will cool the support part 103. One end of the moving groove 108 is connected to the water inlet chamber 104, and the other end of the moving groove 108 is connected to the return water chamber 105 through the water passage hole 107. The flow of cooling water in the moving groove 108 achieves the effect of cooling the roller and avoids the situation where high temperature affects the use of the roller.

[0032] refer to Figure 2 and Figure 3 One end of the central shaft 102 and the inner tube 106 extends into the water-cooled support platform 101. The central shaft 102 can rotate along the water-cooled support platform 101. Specifically, when the roller is in use, bearings and bearing seats are installed at both ends of the central shaft 102. The water-cooled support platform 101 is fixed on the same structure to stabilize the entry and exit of the coolant. The interior of the water-cooled support platform 101 has a first cavity 109 and a second cavity 110. The first cavity 109 is the first cavity that the coolant reaches after entering, and it flows from the first cavity 109 towards the water inlet cavity 104. The second cavity 110 is the cavity that the cooling oil reaches after exiting the return water cavity 105, and is used for the coolant to move towards the return water pipe 112. The outer wall of the water-cooled support platform 101 is connected to the inlet pipe 111 and the return water pipe 112. The inlet pipe 111 extends into the first cavity 109, and the return water pipe 112 extends into the second cavity 110. The first cavity 109 is connected to the inlet cavity 104. The inlet pipe 111 is connected to the external coolant supply end. The return water pipe 112 is used for the discharge of coolant. The second cavity 110 is connected to the return water cavity 105.

[0033] When the rollers are in direct contact with the continuously cast billet, rapid temperature rise occurs. The following structure reduces heat transfer to the rollers: [Reference] Figure 1 and Figure 2 Specifically, a heat insulation sleeve 113 is connected to the outer wall of the support part 103. The heat insulation sleeve 113 is made of high temperature resistant material, preferably ceramic. Guide edges are provided at both ends of the heat insulation sleeve 113. The guide edges are used to straighten the tilted continuous casting billet. The outer ring surface of the heat insulation sleeve 113 contacts the continuous casting billet.

[0034] When the coolant in the inlet chamber 104 flows to the other end, it will directly enter the return chamber 105 instead of flowing towards the flow channel 108. The following provides a structure in which the coolant moves towards the flow channel 108: [Reference] Figure 2 Specifically, a partition plate 114 is connected between one end of the inner tube 106 located in the water inlet chamber 104 and the central shaft 102. The partition plate 114 acts as a barrier to prevent coolant from directly entering the return water chamber 105. A baffle plate 115 is connected between the other end of the inner tube 106 and the central shaft 102. The baffle plate 115 at the other end guides the coolant in the first cavity 109 to the water inlet chamber 104 through the water passage hole 107 on it. The baffle plate 115 has a water passage hole 107.

[0035] Specifically, refer to Figure 2 and Figure 3 The baffle 115 is internally connected to a temperature control component, which controls the water flow at the inlet. The temperature control component includes a temperature sensing tube 116 and a corrugated tube 117.

[0036] Specifically, refer to Figure 2 and Figure 3 The temperature sensing tube 116 is located in the return water cavity 105. Specifically, after the coolant in the return water cavity 105 passes through the flow channel 108, the temperature will rise. When the coolant with temperature comes into contact with the temperature sensing tube 116, the temperature sensing tube 116 is affected by the temperature, which causes the bellows 117 at the other end to extend, thereby moving the inclined block 120. The bellows 117 is located in the first cavity 109.

[0037] Specifically, refer to Figure 3 The inner tube 106 is connected to a connecting pipe 118 extending into the second cavity 110. The connecting pipe 118 is used to guide the coolant in the return water chamber 105 to the second cavity 110, thereby discharging it. The return water chamber 105 is connected to the second cavity 110 through the connecting pipe 118.

[0038] Specifically, refer to Figure 3A beveled ring 119 is connected to the side wall of the first cavity 109. The beveled ring 119 and the beveled block 120 are provided with mutually cooperating bevels on their opposite sides. One end of the bellows 117 is connected to the beveled block 120 that cooperates with the beveled ring 119. The bellows 117 controls the distance between the beveled block 120 and the beveled ring 119 by extending its length. The incoming coolant will flow between the beveled ring 119 and the beveled block 120. By adjusting the distance between the beveled ring 119 and the beveled block 120, the water flow can be controlled.

[0039] When the coolant flows within the flow channel 108, a temperature difference may occur at both ends. The following is a structure to reduce this temperature difference: (Reference) Figure 2 Specifically, the support part 103 has a branch flow channel 121 that connects the flow groove 108 and the water inlet cavity 104. Some of the coolant will enter the flow groove 108 from the branch flow channel 121, thereby mixing with the coolant which has heat. The mixed coolant will cool the support part 103 to reduce the temperature difference between the two ends of the support part 103.

[0040] Specifically, refer to Figure 2 and Figure 3 The central shaft 102 is rotatably connected to the water-cooled support platform 101. When in use, the water-cooled support platform 101 is fixed on the same structure as the bearing seat. When the central shaft 102 rotates, it will not affect the flow out and in of the coolant on the water-cooled support platform 101.

[0041] Specifically, the bottom of the water-cooled support platform 101 is provided with bolt mounting holes for fixing.

[0042] In this embodiment, during use, both ends of the roller are installed at the desired location via bearing seats, and the water-cooled support platform 101 is also fixed. External cooling water enters the roller to cool it. The flow pattern of the coolant is referenced... Figure 4 The coolant is discharged after passing through the first cavity 109, the water inlet cavity 104, the flow channel 108, the water return cavity 105, and the second cavity 110 in sequence.

[0043] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A water-cooled structure for a conveyor roller, characterized in that: The system includes a roller and a water-cooled support platform (101). The roller includes a central shaft (102) and a support part (103) connected to the outer wall of the central shaft (102). The central shaft (102) has an inlet chamber (104) and a return chamber (105) inside. An inner tube (106) is provided between the inlet chamber (104) and the return chamber (105). One end of the inner tube (106) located inside the central shaft (102) has a water passage hole (107). The support part (103) has a flow groove (108) inside. One end of the flow groove (108) is connected to the inlet chamber (104), and the other end of the flow groove (108) is connected to the return chamber (105) through the water passage hole (107). One end of the central shaft (102) and the inner tube (106) extends into the water-cooled support platform (101). The water-cooled support platform (101) has a first cavity (109) and a second cavity (110) inside. The outer wall of the water-cooled support platform (101) is connected to an inlet pipe (111) and a return pipe (112). The inlet pipe (111) extends into the first cavity (109), and the return pipe (112) extends into the second cavity (110). The first cavity (109) is connected to the water inlet cavity (104), and the second cavity (110) is connected to the return cavity (105).

2. The water-cooled structure for a conveyor roller according to claim 1, characterized in that: A heat insulation sleeve (113) is connected to the outer wall of the support (103). Guide edges are provided at both ends of the heat insulation sleeve (113), and the outer ring surface of the heat insulation sleeve (113) contacts the continuously cast billet.

3. The water-cooled structure for a conveyor roller according to claim 1, characterized in that: A partition plate (114) is connected between one end of the inner tube (106) located in the water inlet cavity (104) and the central shaft (102). A baffle plate (115) is connected between the other end of the inner tube (106) and the central shaft (102). A water passage hole (107) is provided on the baffle plate (115).

4. The water-cooled structure for a conveyor roller according to claim 3, characterized in that: The baffle (115) is internally connected to a temperature control component, which includes a temperature sensing tube (116) and a corrugated tube (117).

5. The water-cooled structure for a conveyor roller according to claim 4, characterized in that: The temperature sensing tube (116) is located in the return water cavity (105), and the corrugated tube (117) is located in the first cavity (109).

6. The water-cooled structure for a conveyor roller according to claim 5, characterized in that: The inner tube (106) is connected to a connecting pipe (118) extending into the second cavity (110), and the return water cavity (105) is connected to the second cavity (110) through the connecting pipe (118).

7. The water-cooled structure for a conveyor roller according to claim 6, characterized in that: A beveled ring (119) is connected to the side wall of the first cavity (109), and a beveled block (120) that cooperates with the beveled ring (119) is connected to one end of the bellows (117). The bellows (117) controls the distance between the beveled block (120) and the beveled ring (119) by extending its length.

8. The water-cooled structure for a conveyor roller according to claim 1, characterized in that: The support (103) has a branch flow channel (121) inside that connects the flow channel (108) and the water inlet cavity (104).

9. The water-cooled structure for a conveyor roller according to claim 1, characterized in that: The central shaft (102) is rotatably connected to the water-cooled support platform (101).

10. The water-cooled structure for a conveyor roller according to claim 1, characterized in that: The bottom of the water-cooled support platform (101) is provided with bolt mounting holes.

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