Cooling runner roller

Abstract

The utility model discloses a cooling runner roller which comprises an outer cylinder and an inner cylinder coaxially arranged in the outer cylinder, and further comprises a plurality of spiral pipes, a water passing end cover and a driving end cover, and the spiral pipes are spirally wound on the outer circumferential wall of the inner cylinder and located between the inner circumferential wall of the inner cylinder and the inner circumferential wall of the outer cylinder. The spiral pipes are connected with the inner peripheral wall of the outer cylinder and the outer peripheral wall of the inner cylinder in a sealed mode and arranged at intervals, a spiral flow channel is formed between every two adjacent spiral pipes, the water passing end cover is arranged at one end of the outer cylinder and one end of the inner cylinder in a sealed mode, the driving end cover is arranged at the other end of the outer cylinder and the other end of the inner cylinder in a sealed mode, and a liquid inlet channel and a liquid outlet channel are formed in the water passing end cover. An inner cylinder liquid inlet hole corresponding to the spiral flow channel is formed in the peripheral wall of the inner cylinder, one end of the spiral flow channel is communicated with the inner cylinder liquid inlet hole, and the inner cylinder liquid inlet hole is communicated with the liquid inlet channel. According to the cooling runner roller, the service life of the cooling runner roller is prolonged, and the cooling effect on a diaphragm can be improved.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a cooling flow channel roller. Background Technology

[0002] For current lithium batteries, the separator is one of the key structures because its manufacturing quality affects battery capacity and safety. During separator production, cooling flow channel rollers are generally used to cool the separator and prevent wrinkles. Most existing cooling flow channel rollers use a spiral blade welded between the inner and outer cylinders to form a spiral flow channel. The coolant enters the spiral flow channel and exchanges heat with the separator, which flows around the outer wall of the outer cylinder, thus cooling the separator. However, in this structure, the spiral blade is generally thin, which cannot provide strong support to the outer cylinder, resulting in low support strength and making it prone to deformation. This reduces the lifespan of the cooling flow channel roller. Furthermore, this structure has only one spiral flow channel, resulting in a small heat exchange area, which reduces the efficiency of heat exchange between the coolant and the separator, thus reducing the cooling effect on the separator. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a cooling channel roller, which can reduce the deformation of the outer cylinder, extend the service life of the cooling channel roller, and improve the cooling effect on the diaphragm.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A cooling flow channel roller includes an outer cylinder and an inner cylinder coaxially disposed inside the outer cylinder. It also includes multiple spiral tubes, a water-conducting end cap, and a driving end cap. The spiral tubes are respectively spirally wound around the outer peripheral wall of the inner cylinder and located between the inner peripheral walls of the inner and outer cylinders. The spiral tubes are respectively and sealingly connected to the inner peripheral wall of the outer cylinder and the outer peripheral wall of the inner cylinder, and are spaced apart. A spiral flow channel is formed between two adjacent spiral tubes. The water-conducting end cap is sealingly disposed at one end of the outer and inner cylinders, and the driving end cap is sealingly disposed between the outer and inner cylinders. At the other end, the water-passing end cap is provided with an inlet channel and an outlet channel. The outer peripheral wall of the inner cylinder is provided with an inner cylinder inlet hole corresponding to the spiral flow channel. One end of the spiral flow channel is connected to the inner cylinder inlet hole, and the inner cylinder inlet hole is connected to the inlet channel. There is a folding cavity between the inner peripheral wall of the outer cylinder and the drive end cap. The other end of the spiral flow channel is connected to the folding cavity. One end of the spiral tube is sealed on the water-passing end cap and connected to the outlet channel. The other end of the spiral tube is connected to the folding cavity.

[0006] As a preferred technical solution, the water-passing end cap includes a first sealing flange, a connecting shaft, and an inner tube. The first sealing flange includes a first flange body, a first mounting portion, and a first support portion connected in sequence. The first flange body is sleeved inside one end of the outer cylinder, and the outer peripheral wall of the first flange body is sealed to the inner peripheral wall of the outer cylinder. The first mounting portion and the first support portion are sleeved inside one end of the inner cylinder, and the outer peripheral walls of the first mounting portion and the first support portion are sealed to the inner peripheral wall of the inner cylinder. One end of the connecting shaft is connected to the end of the first flange body away from the first mounting portion. An end cap cavity is provided inside the connecting shaft, the first flange body, and the first mounting portion. The inner tube is disposed inside the end cap cavity. One end of the inner tube extends out from one end of the end cap cavity, and the outer peripheral wall of the other end of the inner tube is sealed to the inner peripheral wall of the end cap cavity. The liquid outlet channel is formed between the inner tube and the inner peripheral wall of the end cap cavity. An inlet cavity is formed between the other end of the inner tube and the other end of the end cap cavity. The inlet cavity and the inner tube communicate to form the inlet channel.

[0007] As a preferred technical solution, the outer peripheral wall of the first mounting part is provided with an end cap liquid inlet hole corresponding to the liquid inlet hole of the inner cylinder. The end cap liquid inlet hole is connected to the liquid inlet hole of the inner cylinder and the liquid inlet cavity respectively. The outer peripheral wall of the first flange body is provided with a first body stepped surface. The first body stepped surface is provided with a mounting hole corresponding to the spiral tube. The outer peripheral wall of the first flange body is provided with a groove connected to the mounting hole. One end of the spiral tube is sleeved in the mounting hole and the one end of the spiral tube is sealed to the inner peripheral wall of the mounting hole. The one end of the spiral tube is connected to the groove. The bottom of the groove is provided with a liquid outlet hole, and the liquid outlet hole is connected to the inner cavity of the end cap.

[0008] As a preferred technical solution, the inner tube is connected to the inner peripheral wall of the end cap cavity via a connecting block.

[0009] As a preferred technical solution, the end cap cavity includes a first part, a second part, and a third part connected in sequence. The inner tube is disposed within the first part, the second part, and the third part. The outer peripheral wall of the other end of the inner tube is sealed to the inner peripheral wall of the third part. The liquid outlet channel is formed between the inner tube and the inner peripheral walls of the first part, the second part, and the third part. The liquid inlet cavity is formed between the other end of the inner tube and the end of the third part away from the second part. The liquid outlet is connected to the second part. The inner diameter of the second part is larger than the inner diameter of the first part and the third part.

[0010] As a preferred technical solution, the inner peripheral wall of the outer cylinder is provided with a first outer cylinder step surface, the outer peripheral wall of the first flange body is provided with a second body step surface, the groove is located between the second body step surface and the mounting hole, and the second body step surface abuts against the first outer cylinder step surface.

[0011] As a preferred technical solution, the first flange body, the first mounting part, the first support part, and the connecting shaft are integrally formed.

[0012] As a preferred technical solution, the drive end cover includes a second sealing flange and a drive shaft. The second sealing flange includes a second flange body, a second mounting part, and a second support part connected in sequence. The second flange body is sleeved inside the other end of the outer cylinder, and the outer peripheral wall of the second flange body is sealed to the inner peripheral wall of the outer cylinder. The second mounting part is located inside the other end of the outer cylinder and is sealed to the other end of the inner cylinder. The folding cavity is formed between the second mounting part and the inner peripheral wall of the outer cylinder. The second support part is sleeved inside the inner cylinder, and the outer peripheral wall of the second support part is sealed to the inner peripheral wall of the inner cylinder. One end of the drive shaft is connected to the end of the second flange body away from the second mounting part.

[0013] As a preferred technical solution, the inner peripheral wall of the outer cylinder is provided with a second outer cylinder stepped surface, and the second flange body abuts against the second outer cylinder stepped surface.

[0014] As a preferred technical solution, the second flange body, the second mounting part, the second support part, and the drive shaft are integrally formed.

[0015] The beneficial effects of this utility model are as follows: This utility model uses multiple spiral tubes, each spirally wound around the outer circumferential wall of the inner cylinder and located between the inner and outer circumferential walls of the inner and outer cylinders. These spiral tubes are sealed and connected to both the inner and outer circumferential walls of the outer and inner cylinders, and are spaced apart. Compared to the existing method using spiral blades, these multiple spiral tubes provide strong support to the outer cylinder and can withstand fluid pressure, thereby improving the support strength of the outer cylinder, reducing deformation, and extending the service life of the cooling channel roller. Furthermore, the ability of the multiple spiral tubes to withstand fluid pressure reduces the possibility of detachment from the inner cylinder. Simultaneously, a spiral flow channel is formed between adjacent spiral tubes, resulting in a cooling channel roller with multiple spiral flow channels. Compared to the existing method using a single spiral flow channel, this extends the flow path of the coolant, increases the heat exchange area, improves the efficiency of heat exchange between the coolant and the diaphragm, and enhances the cooling effect on the diaphragm. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of a cooling channel roller at a first angle according to an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A schematic diagram of the second angle of the cooling channel roller shown;

[0019] Figure 3 yes Figure 1 The diagram shows a front view of the cooling channel rollers.

[0020] Figure 4 yes Figure 3 A cross-sectional view at point AA is shown.

[0021] Figure 5 yes Figure 1 A top view of the cooling channel rollers shown;

[0022] Figure 6 yes Figure 5 A cross-sectional view at point BB shown;

[0023] Figure 7 Yes, yes Figure 1 The diagram shows the structure of the cooling channel roller after removing the outer cylinder and inner tube.

[0024] Figure 8 , Figure 9 yes Figure 1 A schematic diagram of the outer cylinder of the cooling flow channel roller is shown.

[0025] Figure 10 , Figure 11 yes Figure 1 A schematic diagram of the structure of the multiple spiral tubes and inner cylinder of the cooling flow channel roller shown;

[0026] Figure 12 yes Figure 1 A schematic diagram of the water-passing end cap of the cooling channel roller shown;

[0027] Figure 13 yes Figure 12 A cross-sectional schematic diagram of the water inlet cap shown.

[0028] Figure 14 yes Figure 1 A schematic diagram of the structure of the drive end cover of the cooling channel roller shown;

[0029] Figure 15 yes Figure 1 The diagram shows the structure of the inner tube of the water-passing end cap of the cooling channel roller.

[0030] Figure label:

[0031] 10. Outer cylinder; 11. First outer cylinder step surface; 12. Second outer cylinder step surface;

[0032] 20. Inner cylinder; 21. Liquid inlet hole of the inner cylinder;

[0033] 30. Spiral tube; 31. Spiral flow channel; 32. Reversal cavity;

[0034] 40. Water inlet end cap; 41. First sealing flange; 411. First flange body; 411a. First body stepped surface; 411b. Second body stepped surface; 4111. End cap inner cavity; 41111. First part; 41112. Second part; 41113. Third part; 41114. Mounting groove; 4112. Mounting hole; 4113. Groove; 4114. Liquid outlet; 412. First mounting part; 4121. Liquid inlet chamber; 4122. End cap liquid inlet; 413. First support part; 42. Connecting shaft; 43. Inner tube; 431. Connecting block; 432. Protrusion; 433. Sealing ring;

[0035] 50. Drive end cover; 51. Second sealing flange; 511. Second flange body; 512. Second mounting part; 513. Second support part; 52. Drive shaft. Detailed Implementation

[0036] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0037] Please refer to Figures 1 to 7 A cooling flow channel roller provided in one embodiment of the present invention includes an outer cylinder 10, an inner cylinder 20 coaxially disposed inside the outer cylinder 10, a plurality of spiral tubes 30, a water-passing end cap 40, and a drive end cap 50.

[0038] Combination Figure 10 and Figure 11As shown, multiple spiral tubes 30 are spirally wound around the outer peripheral wall of the inner cylinder 20 and located between the inner peripheral walls of the inner cylinder 20 and the outer cylinder 10. The spiral tubes 30 are respectively and sealed to the inner peripheral wall of the outer cylinder 10 and the outer peripheral wall of the inner cylinder 20, and are spaced apart. The sealing connection method is, for example, welding. A spiral flow channel 31 is formed between two adjacent spiral tubes 30. A water-passing end cap 40 is sealed at one end of the outer cylinder 10 and the inner cylinder 20, and a drive end cap 50 is sealed at the other end of the outer cylinder 10 and the inner cylinder 20. The water-passing end cap 40 has an inlet channel and an outlet channel. The outer peripheral wall of the inner cylinder 20 has an inner cylinder inlet hole 21 corresponding to the spiral flow channel 31. One end of the spiral flow channel 31 communicates with the inner cylinder inlet hole 21, and the inner cylinder inlet hole 21 communicates with the inlet channel. A return cavity 32 is formed between the inner peripheral wall of the outer cylinder 10 and the drive end cap 50, and the other end of the spiral flow channel 31 communicates with the return cavity 32. One end of the spiral tube 30 is sealed on the water inlet cap 40 and communicates with the liquid outlet channel, while the other end of the spiral tube 30 communicates with the return cavity 32. The liquid inlet channel and the liquid outlet channel are respectively used to communicate with the coolant system through pipes. The water inlet cap 40 and the drive cap 50 are respectively rotatably mounted on the frame of the diaphragm production equipment, and the drive cap 50 is used to connect to the power mechanism mounted on the frame. The power mechanism can drive the drive cap 50 to rotate, thereby driving the outer cylinder 10, the inner cylinder 20, the multiple spiral tubes 30, and the water inlet cap 40 to rotate.

[0039] In practical applications, coolant, such as water, is supplied to the inlet channel through the coolant system. The coolant then enters the corresponding spiral flow channel 31 through the inner cylinder inlet hole 21, then into the return chamber 32, and then through the other end of multiple spiral tubes 30 into the spiral tubes 30. Finally, it flows back to the coolant system to achieve circulation. During this process, as the diaphragm passes over the outer peripheral wall of the outer cylinder 10, the coolant in the spiral flow channel 31 exchanges heat with the diaphragm, absorbing the heat generated by the diaphragm and thus cooling it. This invention utilizes multiple spiral tubes 30, which are spirally wound around the outer peripheral wall of the inner cylinder 20 and located between the inner peripheral walls of the inner cylinder 20 and the outer cylinder 10. These spiral tubes 30 are sealed to both the inner peripheral wall of the outer cylinder 10 and the outer peripheral wall of the inner cylinder 20, and are spaced apart. Compared to existing methods using spiral blades, the multiple spiral tubes 30 provide strong support to the outer cylinder 10, thereby increasing its support strength, reducing deformation, and extending the service life of the cooling channel roller. Furthermore, the multiple spiral tubes 30 can withstand fluid pressure, reducing the possibility of detachment from the inner cylinder 20. Simultaneously, a spiral flow channel 31 is formed between adjacent spiral tubes 30, resulting in a cooling channel roller with multiple spiral flow channels 31. Compared to existing methods using a single spiral flow channel, this extends the flow path of the coolant, increases the heat exchange area, improves the efficiency of heat exchange between the coolant and the diaphragm, and enhances the cooling effect on the diaphragm. In addition, this utility model provides an inlet channel and an outlet channel inside the water inlet cover 40, which facilitates the connection of the drive end cover 50 with the power mechanism mounted on the frame.

[0040] Combination Figure 12 and Figure 13 As shown, the water inlet cover 40 includes a first sealing flange 41, a connecting shaft 42, and an inner tube 43.

[0041] The first sealing flange 41 includes a first flange body 411, a first mounting portion 412, and a first support portion 413 connected in sequence. The first flange body 411 is fitted inside one end of the outer cylinder 10, and the outer peripheral wall of the first flange body 411 is sealed to the inner peripheral wall of the outer cylinder 10, for example, by welding. The first mounting portion 412 and the first support portion 413 are fitted inside one end of the inner cylinder 20, and the outer peripheral walls of the first mounting portion 412 and the first support portion 413 are sealed to the inner peripheral wall of the inner cylinder 20, for example, by welding. One end of the connecting shaft 42 is connected to the end of the first flange body 411 away from the first mounting portion 412, and the other end of the connecting shaft 42 is rotatably mounted on a frame. The first support portion 413 provides support for one end of the inner cylinder 20.

[0042] In this embodiment, the first flange body 411, the first mounting part 412, the first support part 413 and the connecting shaft 42 are integrally formed, which facilitates manufacturing and assembly.

[0043] The connecting shaft 42, the first flange body 411, and the first mounting part 412 are provided with an end cap cavity 4111. An inner tube 43 is coaxially disposed in the end cap cavity 4111. One end of the inner tube 43 extends out from one end of the end cap cavity 4111 and is rotatably mounted on the frame. The outer peripheral wall of the other end of the inner tube 43 is sealed to the inner peripheral wall of the end cap cavity 4111. The liquid outlet channel is formed between the inner tube 43 and the inner peripheral wall of the end cap cavity 4111. An inlet cavity 4121 is formed between the other end of the inner tube 43 and the other end of the end cap cavity 4111. The inlet cavity 4121 and the inner tube 43 are connected to form the inlet channel.

[0044] The outer peripheral wall of the first mounting part 412 is provided with an end cap liquid inlet hole 4122 corresponding to the inner cylinder liquid inlet hole 21. The end cap liquid inlet hole 4122 is connected to the inner cylinder liquid inlet hole 21 and the liquid inlet cavity 4121 respectively. The outer peripheral wall of the first flange body 411 is provided with a first body stepped surface 411a. The first body stepped surface 411a is provided with a mounting hole 4112 corresponding to the spiral tube 30. The outer peripheral wall of the first flange body 411 is provided with a groove 4113 communicating with the mounting hole 4112. One end of the spiral tube 30 is sleeved in the mounting hole 4112 and the one end of the spiral tube 30 is sealed to the inner peripheral wall of the mounting hole 4112. The sealing connection method is, for example, welding connection. One end of the spiral tube 30 is connected to the groove 4113. The bottom of the groove 4113 is provided with a liquid outlet hole 4114, which is connected to the inner cavity 4111 of the end cap. In practical applications, coolant is supplied to the inner tube 43 through the coolant system. The coolant then enters the inlet chamber 4121, then the end cap inlet hole 4122, and then through the corresponding inner cylinder inlet hole 21 and one end of the corresponding spiral flow channel 31. It then enters the return chamber 32 through the other end of the spiral flow channel 31, and finally enters the spiral tube 30 through the other end. After entering the spiral tube 30, the coolant first enters the corresponding groove 4113 through one end of the spiral tube 30, then the corresponding outlet hole 4114, and finally the outlet channel.

[0045] The inner tube 43 is connected to the inner peripheral wall of the end cap cavity 4111 via a connecting block 431. Specifically, the outer peripheral wall of the inner tube 43 is provided with a connecting block 431. The end of the connecting block 431 away from the inner tube 43 is connected to the inner peripheral wall of the end cap cavity 411, and the connecting block 431 is close to the end of the connecting shaft 42 away from the first flange body 411. The connecting block 431 can fix the inner tube 43 inside the end cap cavity 4111. In this embodiment, there are multiple connecting blocks 431, for example, three, which are spaced apart on the outer peripheral wall of the inner tube 43. It can be understood that the number of connecting blocks 431 can be set according to the actual situation.

[0046] In this embodiment, the end cap cavity 4111 includes a first part 41111, a second part 41112, and a third part 41113 connected in sequence. An inner tube 43 is coaxially disposed within the first part 41111, the second part 41112, and the third part 41113. The outer peripheral wall of the other end of the inner tube 43 is sealed to the inner peripheral wall of the third part 41113. The inner tube 43 forms the liquid outlet channel between itself and the inner peripheral walls of the first part 41111, the second part 41112, and the third part 41113. The other end of the inner tube 43 forms the liquid inlet cavity 4121 between itself and the end of the third part 41113 furthest from the second part 41112. The liquid outlet hole 4114 communicates with the second part 41112. The inner diameter of the second part 41112 is larger than the inner diameters of the first part 41111 and the third part 41113, facilitating the entry of coolant from the liquid outlet hole 4114 into the liquid outlet channel. The end of the connecting block 431 away from the inner tube 43 is connected to the inner peripheral wall of the first part 41111.

[0047] The outer peripheral wall of the other end of the inner tube 43 is sealed to the inner peripheral wall of the third part 41113. Specifically, in conjunction with... Figure 15 As shown, the outer peripheral wall of the other end of the inner tube 43 has an annular protrusion 432, and the inner peripheral wall of the third part 41113 is provided with a mounting groove 41114 that mates with the protrusion 432 (see...). Figure 13 The outer peripheral wall of the protrusion 432 is provided with an annular groove, and a sealing ring 433 is provided in the annular groove. The sealing ring 433 protrudes from the outer peripheral wall of the protrusion 432 and abuts against the inner peripheral wall of the mounting groove 41114.

[0048] Combination Figure 14As shown, the drive end cover 50 includes a second sealing flange 51 and a drive shaft 52. The second sealing flange 51 includes a second flange body 511, a second mounting portion 512, and a second support portion 513 connected in sequence. The second flange body 511 is sleeved inside the other end of the outer cylinder 10, and the outer peripheral wall of the second flange body 511 is sealed to the inner peripheral wall of the outer cylinder 10, for example, by welding. The second mounting portion 512 is located inside the other end of the outer cylinder 10 and is sealed to the other end of the inner cylinder 20, for example, by welding. The second mounting portion 513 and the inner peripheral wall of the outer cylinder 10 have the aforementioned folding cavity 32. The second support portion 513 is sleeved inside the inner cylinder 20, and the outer peripheral wall of the second support portion 513 is sealed to the inner peripheral wall of the inner cylinder 20, for example, by welding. The second support portion 513 provides support to the other end of the inner cylinder 20. One end of the drive shaft 52 is connected to the end of the second flange body 511 away from the second mounting part 512, and the other end of the drive shaft 52 is rotatably mounted on the frame and is used to connect to the power mechanism.

[0049] The second flange body 511, the second mounting part 512, the second support part 513 and the drive shaft 52 are integrally formed, which facilitates manufacturing and assembly.

[0050] In this embodiment, the outer cylinder 10, inner cylinder 20, spiral tube 30, water inlet cap 40, and drive end cap 50 are all made of stainless steel, which can further improve the support strength of the outer cylinder 10. There are six spiral tubes 30, and the number of inner cylinder liquid inlet holes 21, end cap liquid inlet holes 4121, mounting holes 4112, grooves 4113, and outlet holes 4114 corresponds to the number of spiral tubes 30, which are also six each. It can be understood that the number of spiral tubes 30, inner cylinder liquid inlet holes 21, end cap liquid inlet holes 4121, mounting holes 4112, grooves 4113, and outlet holes 4114 can be set according to the actual situation. By adjusting the number of spiral tubes 30, the spacing between two adjacent spiral tubes 30, and the spiral pitch of the spiral tubes 30, the tube length can be extended, the flow resistance reduced, and the flow state of the fluid changed, thereby increasing the heat exchange area and reducing the tendency of scaling while enhancing the heat exchange capacity of the cooling channel roller.

[0051] Combination Figure 8 and Figure 9 As shown, the inner peripheral wall of the outer cylinder 10 is provided with a first outer cylinder step surface 11, and the outer peripheral wall of the first flange body 511 is provided with a second body step surface 411b (see...). Figure 12 , Figure 13The groove 4113 is located between the second body step surface 411b and the mounting hole 4112, and the second body step surface 411b abuts against the first outer cylinder step surface 11. The first outer cylinder step surface 11 and the second body step surface 411b play a positioning role in the process of fitting the first flange body 411 of the water-conducting end cap 40 into one end of the outer cylinder 10, and fitting the first mounting part 412 and the first support part 413 into one end of the inner cylinder 20, so as to facilitate the assembly of the water-conducting end cap 40, the outer cylinder 10, and the inner cylinder 20 together. The inner circumferential wall of the outer cylinder 10 is provided with a second outer cylinder step surface 12. The second flange body 511 abuts against the second outer cylinder step surface 12. The second outer cylinder step surface 12 plays a positioning role in the process of fitting the second flange body 511 of the drive end cover 50 into the other end of the outer cylinder 10 and fitting the second support part 513 into the other end of the inner cylinder 20, so as to facilitate the assembly of the drive end cover 50, the outer cylinder 10, and the inner cylinder 20 together.

[0052] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A cooling channel roller, comprising an outer cylinder and an inner cylinder coaxially disposed inside the outer cylinder, characterized in that, It also includes multiple spiral tubes, a water inlet cap, and a drive cap. The multiple spiral tubes are spirally wound around the outer peripheral wall of the inner cylinder and located between the inner peripheral walls of the inner and outer cylinders. The multiple spiral tubes are respectively sealed and connected to the inner peripheral wall of the outer cylinder and the outer peripheral wall of the inner cylinder and are spaced apart. A spiral flow channel is formed between two adjacent spiral tubes. The water inlet cap is sealed at one end of the outer and inner cylinders, and the drive cap is sealed at the other end of the outer and inner cylinders. The water inlet cap is provided with an inlet channel and an outlet channel. The outer peripheral wall of the inner cylinder is provided with an inner cylinder inlet hole corresponding to the spiral flow channel. One end of the spiral flow channel is connected to the inner cylinder inlet hole, and the inner cylinder inlet hole is connected to the inlet channel. A return cavity is formed between the inner peripheral wall of the outer cylinder and the drive cap. The other end of the spiral flow channel is connected to the return cavity. One end of the spiral tube is sealed on the water inlet cap and is connected to the outlet channel. The other end of the spiral tube is connected to the return cavity.

2. The cooling runner roll of claim 1 wherein, The water inlet cap includes a first sealing flange, a connecting shaft, and an inner tube. The first sealing flange includes a first flange body, a first mounting part, and a first support part connected in sequence. The first flange body is sleeved inside one end of the outer cylinder, and the outer peripheral wall of the first flange body is sealed to the inner peripheral wall of the outer cylinder. The first mounting part and the first support part are sleeved inside one end of the inner cylinder, and the outer peripheral walls of the first mounting part and the first support part are sealed to the inner peripheral wall of the inner cylinder. One end of the connecting shaft is connected to the end of the first flange body away from the first mounting part. The connecting shaft, the first flange body, and the first mounting part are provided with an end cap cavity. The inner tube is disposed in the end cap cavity. One end of the inner tube extends out from one end of the end cap cavity. The outer peripheral wall of the other end of the inner tube is sealed to the inner peripheral wall of the end cap cavity. The liquid outlet channel is formed between the inner tube and the inner peripheral wall of the end cap cavity. The liquid inlet cavity is formed between the other end of the inner tube and the other end of the end cap cavity. The liquid inlet cavity and the inner tube are connected to form the liquid inlet channel.

3. The cooling runner roll of claim 2 wherein, The outer peripheral wall of the first mounting part is provided with an end cap liquid inlet hole corresponding to the liquid inlet hole of the inner cylinder. The end cap liquid inlet hole is connected to the liquid inlet hole of the inner cylinder and the liquid inlet cavity respectively. The outer peripheral wall of the first flange body is provided with a first body stepped surface. The first body stepped surface is provided with a mounting hole corresponding to the spiral tube. The outer peripheral wall of the first flange body is provided with a groove connected to the mounting hole. One end of the spiral tube is sleeved in the mounting hole and the one end of the spiral tube is sealed to the inner peripheral wall of the mounting hole. One end of the spiral tube is connected to the groove. The bottom of the groove is provided with a liquid outlet hole, which is connected to the inner cavity of the end cap.

4. The cooling runner roll of claim 2 wherein, The inner tube is connected to the inner peripheral wall of the end cap cavity via a connecting block.

5. The cooling runner roll of claim 3 wherein, The end cap cavity includes a first part, a second part, and a third part connected in sequence. The inner tube is disposed within the first part, the second part, and the third part. The outer peripheral wall of the other end of the inner tube is sealed to the inner peripheral wall of the third part. The liquid outlet channel is formed between the inner tube and the inner peripheral walls of the first part, the second part, and the third part. The liquid inlet cavity is formed between the other end of the inner tube and the end of the third part away from the second part. The liquid outlet is connected to the second part. The inner diameter of the second part is larger than the inner diameter of the first part and the third part.

6. The cooling runner roll of claim 3 wherein, The inner peripheral wall of the outer cylinder is provided with a first outer cylinder step surface, and the outer peripheral wall of the first flange body is provided with a second body step surface. The groove is located between the second body step surface and the mounting hole, and the second body step surface abuts against the first outer cylinder step surface.

7. The cooling runner roll of claim 2 wherein, The first flange body, the first mounting part, the first support part, and the connecting shaft are integrally formed.

8. The cooling runner of claim 1, wherein The drive end cover includes a second sealing flange and a drive shaft. The second sealing flange includes a second flange body, a second mounting part, and a second support part connected in sequence. The second flange body is sleeved inside the other end of the outer cylinder, and the outer peripheral wall of the second flange body is sealed to the inner peripheral wall of the outer cylinder. The second mounting part is located inside the other end of the outer cylinder and is sealed to the other end of the inner cylinder. The folding cavity is formed between the second mounting part and the inner peripheral wall of the outer cylinder. The second support part is sleeved inside the inner cylinder, and the outer peripheral wall of the second support part is sealed to the inner peripheral wall of the inner cylinder. One end of the drive shaft is connected to the end of the second flange body away from the second mounting part.

9. The cooling runner roll of claim 8 wherein, The inner circumferential wall of the outer cylinder is provided with a second outer cylinder stepped surface, and the second flange body abuts against the second outer cylinder stepped surface.

10. The cooling channel roller according to claim 8, characterized in that, The second flange body, the second mounting part, the second support part, and the drive shaft are integrally formed.

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