Laser cladding laminar flow roller
By setting a plurality of through holes and return hole groups on the inner roller ring of the laminar flow roller, rapid liquid filling and liquid discharge of the outer cooling chamber is achieved, solving the problems of slow liquid filling speed and liquid discharge speed in the prior art, and ensuring the efficient cooling performance of the laminar flow roller.
Patent Information
- Application Number
- CN202421888762.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The liquid filling speed and discharge speed of the outer cooling chamber of the existing laminar flow roller are slower, and there may even be problems such as insufficient liquid filling or insufficient discharge.
A laser cladding laminar flow roller is designed. By providing a plurality of through holes and a reflow hole group on the inner roller ring of the roller, the liquid can enter the outer cooling chamber sideways from the central cooling chamber, and accelerate liquid filling and discharge through the bottom reflow hole group.
The liquid filling and discharge speed of the outer cooling chamber is improved, and the problem of insufficient liquid filling or discharge is avoided, ensuring the efficient cooling performance of the laminar flow roller.
Smart Images
Figure CN222861643U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of laser cladding parts, and more specifically relates to a laser cladding laminar flow roller. Background Art
[0002] Laminar cooling rolls are also called laminar cooling rolls. They are key components in hot rolling production lines and are located between the finishing mill and the coiler. Their main function is to quickly cool the hot rolled strip through the laminar cooling system after finishing rolling to achieve the required physical properties and dimensional accuracy. The design and performance of laminar cooling rolls directly affect the quality of hot rolled products.
[0003] In the prior art, a central cooling cavity is provided in the middle of the laminar flow roller, and two mounting roller rings are provided at both ends of the central cooling cavity. The hollow roller shaft passes through the two mounting roller rings from one end of the laminar flow roller, and a liquid inlet pipe is provided in the middle of the roller shaft to introduce external liquid into the central cooling cavity. The gap between two adjacent mounting roller rings constitutes an outer cooling cavity. In order to ensure the liquid inflow of the outer cooling cavity, a connecting hole is usually provided on the inner mounting roller ring. Although the above method can ensure that the central cooling cavity and the two outer cooling cavities can be filled with liquid for cooling, the filling speed and drainage speed of the outer cooling cavity will be affected by the size and position of the through hole, resulting in a slower filling speed and drainage speed of the outer cooling cavity, and even the situation where the outer cooling cavity is not fully filled or drained. Utility Model Content
[0004] The utility model aims to provide a laser cladding laminar flow roller, aiming to solve the problem that the filling speed and the liquid discharge speed of the outer cooling cavity are slow, or even the outer cooling cavity is not fully filled or completely discharged.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a laser cladding laminar flow roller, comprising:
[0006] A roller, wherein the outer surface of the roller is provided with a cladding base layer;
[0007] A first roller ring shaft group, the first roller ring shaft group includes a first inner roller ring, a first outer roller ring and a first roller shaft, the first outer roller ring and the first inner roller ring are arranged at one end of the inner cavity of the roller along the axial direction of the roller from the outside to the inside, the first roller shaft axially penetrates and connects the first outer roller ring and the first inner roller ring, a first outer cooling cavity is formed between the first outer roller ring and the first inner roller ring, a plurality of first through holes connected to the first outer cooling cavity are circumferentially provided on the first inner roller ring, a through hole is axially provided inside the first roller shaft, a first reflux hole group connected to the through holes is obliquely provided on the circumferential direction of the first roller shaft, a liquid inlet pipe is axially penetrated in the through hole, and a reflux gap exists between the liquid inlet pipe and the through hole;
[0008] The second roller ring shaft group includes a second inner roller ring, a second outer roller ring and a second roller shaft. The second outer roller ring and the second inner roller ring are spaced apart from the outside to the inside along the axial direction of the roller at the other end of the inner cavity of the roller. The second roller shaft axially penetrates and connects the second outer roller ring and the second inner roller ring. A second outer cooling cavity is formed between the second outer roller ring and the second inner roller ring. A plurality of second through holes connected to the second outer cooling cavity are circumferentially provided on the second inner roller ring. A return blind hole is axially provided on the inner end surface of the second roller shaft. A second return hole group connected to the return blind hole is obliquely provided on the circumference of the second roller shaft.
[0009] In a possible implementation, the first reflow hole group includes a plurality of first outer holes and a plurality of first inner holes, the plurality of first outer holes and the plurality of first inner holes are all opened in the circumferential direction of the first roller shaft, the first outer hole is arranged on the outer side of the first inner hole along the axial direction of the first roller shaft, the first outer hole is inclined from one end of the first outer cooling cavity to one end of the through hole toward the outer side of the roller, and the first inner hole is inclined from one end of the first outer cooling cavity to one end of the through hole toward the inner side of the roller.
[0010] In a possible implementation, the first outer hole and the first inner hole have the same inclination angle and are both not less than 45°.
[0011] In a possible implementation, the second reflow hole group includes a plurality of second outer holes and a plurality of second inner holes, the plurality of second outer holes and the plurality of second inner holes are all opened in the circumferential direction of the second roller shaft, the second outer holes are arranged on the outer side of the second inner holes along the axial direction of the second roller shaft, the second outer holes are inclined from one end of the second outer cooling cavity to one end of the reflow blind hole toward the outer side of the roller, and the second inner holes are inclined from one end of the second outer cooling cavity to one end of the reflow blind hole toward the inner side of the roller.
[0012] In a possible implementation, the inclination angles of the second outer hole and the second inner hole are the same and are not less than 45°.
[0013] In a possible implementation manner, a plurality of support blocks are arranged at circumferential intervals between the liquid inlet pipe and the through hole.
[0014] In a possible implementation, an outer step platform and an inner step platform are respectively provided at both ends of the inner cavity of the roller, the outer diameter of the outer step platform is larger than the inner diameter of the inner step platform, the first outer roller ring and the second outer roller ring are respectively clamped and fixed on the two outer step platforms, and the first inner roller ring and the second inner roller ring are respectively clamped and fixed on the two inner step platforms.
[0015] In a possible implementation, a mounting shell is fixed to the outer side of the first outer roller ring, an end cover is installed on the outer side of the mounting shell, a water return jacket is installed on the outer side of the end cover, a water return port is opened on one side of the water return jacket, one end of the outer side of the first roller shaft passes through the mounting shell and the end cover in sequence and extends into the water return jacket, and the liquid inlet pipe passes through the water return jacket and extends to the outside.
[0016] In a possible implementation, the first roller is rotatably matched with the mounting shell, the end cover, and the water return sleeve.
[0017] In a possible implementation, the outer end of the second roller is transmission-connected to a motor.
[0018] The beneficial effect of the laser cladding laminar flow roller provided by the utility model is that compared with the prior art, when the cooling cavity of the laminar flow roller is filled with liquid, the liquid enters the middle cooling cavity through the liquid inlet pipe, and as the liquid in the middle cooling cavity gradually increases, part of the liquid enters the first outer cooling cavity from the side through multiple first through holes, and part of the liquid enters the second outer cooling cavity from the side through multiple second through holes. At the same time, part of the liquid will enter the reflux gap between the liquid inlet pipe and the through hole, and then enter the first outer cooling cavity from the bottom through the first reflux hole group arranged obliquely, and part of the liquid will enter the cooling blind hole, and then enter the second outer cooling cavity from the bottom through the second reflux hole group arranged obliquely. During the liquid filling process, the outer cold zone cavity is filled with liquid from the bottom and the side, respectively, which increases the speed of liquid filling. Similarly, when draining the cooling cavity of the laminar flow roller, the liquid in the middle cooling cavity is drained through the reflux gap between the liquid inlet pipe and the through hole, and the outer cooling cavity is drained from the side through the corresponding through hole, and at the same time, the liquid is drained from the bottom through the bottom inclined reflux hole group, which speeds up the drainage speed of the outer cooling cavity. The laser cladding laminar flow roller provided by the utility model speeds up the filling speed and drainage speed of the outer cooling cavity, avoiding the problem of insufficient filling or incomplete drainage of the outer cooling cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 A schematic structural diagram of a laser cladding laminar flow roller provided in an embodiment of the utility model.
[0021] Description of reference numerals:
[0022] 1. Roller; 2. Cladding base; 3. First inner roller ring; 4. First outer roller ring; 5. First roller shaft; 6. First outer cooling cavity; 7. First through hole; 8. Reflux gap; 9. Liquid inlet pipe; 10. Second inner roller ring; 11. Second outer roller ring; 12. Second roller shaft; 13. Second outer cooling cavity; 14. Second through hole; 15. Reflux blind hole; 16. First outer hole; 17. First inner hole; 18. Second outer hole; 19. Second inner hole; 20. Support block; 21. Outer step platform; 22. Inner step platform; 23. Mounting shell; 24. End cover; 25. Water return jacket; 26. Water return port; 27. Motor; 28. Middle cooling cavity. DETAILED DESCRIPTION
[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0024] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. is to distinguish different objects rather than to describe a specific order.
[0025] In the claims, specification and the above-mentioned drawings of the utility model, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", "high", "low", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the utility model.
[0026] See also Figure 1 Now, the laser cladding laminar flow roller provided by the utility model is described. The laser cladding laminar flow roller comprises a roller 1, a first roller ring shaft group and a second roller ring shaft group.
[0027] The outer surface of the roller 1 is provided with a cladding base layer 2; the first roller ring shaft group includes a first inner roller ring 3, a first outer roller ring 4 and a first roller shaft 5, the first outer roller ring 4 and the first inner roller ring 3 are arranged at one end of the inner cavity of the roller 1 from the outside to the inside along the axial direction of the roller 1, and the first roller shaft 5 axially penetrates and connects the first outer roller ring 4 and the first inner roller ring 3, and a first outer cooling cavity 6 is formed between the first outer roller ring 4 and the first inner roller ring 3, and a plurality of first through holes 7 connected to the first outer cooling cavity 6 are opened in the circumferential direction of the first inner roller ring 3, a through hole is opened axially inside the first roller shaft 5, and a first reflux hole group connected to the through hole is opened obliquely in the circumferential direction of the first roller shaft 5, and a liquid inlet pipe 9 is axially penetrated in the through hole, and the liquid inlet pipe 9 is connected to the first inner roller ring 3 There is a reflux gap 8 between the through holes; the second roller ring shaft group includes a second inner roller ring 10, a second outer roller ring 11 and a second roller shaft 12, the second outer roller ring 11 and the second inner roller ring 10 are arranged at the other end of the inner cavity of the roller 1 from outside to inside along the axial direction of the roller 1, the second roller shaft 12 axially penetrates and connects the second outer roller ring 11 and the second inner roller ring 10, a second outer cooling cavity 13 is formed between the second outer roller ring 11 and the second inner roller ring 10, a plurality of second through holes 14 connected to the second outer cooling cavity 13 are opened in the circumferential direction of the second inner roller ring 10, a reflux blind hole 15 is opened axially on the inner end face of the second roller shaft 12, and a second reflux hole group connected to the reflux blind hole 15 is opened obliquely in the circumferential direction of the second roller shaft 12.
[0028] Compared with the prior art, the laser cladding laminar flow roller provided by the utility model has the following characteristics: when the cooling cavity of the laminar flow roller is filled with liquid, the liquid enters the middle cooling cavity 28 through the liquid inlet pipe 9, and as the liquid in the middle cooling cavity 28 gradually increases, part of the liquid enters the first outer cooling cavity 6 from the side through the multiple first through holes 7, and part of the liquid enters the second outer cooling cavity 13 from the side through the multiple second through holes 14. At the same time, part of the liquid will enter the reflux gap 8 between the liquid inlet pipe 9 and the through hole, and then enter the first outer cooling cavity 6 from the bottom through the first reflux hole group arranged obliquely, and part of the liquid will enter the cooling blind hole, and then enter the second outer cooling cavity 13 from the bottom through the second reflux hole group arranged obliquely. During the liquid filling process, the outer cold zone cavity is filled with liquid from the bottom and the side, respectively, which increases the liquid filling speed. Similarly, when the cooling cavity of the laminar flow roller is drained, the liquid in the middle cooling cavity 28 is drained through the reflux gap 8 between the liquid inlet pipe 9 and the through hole, and the outer cooling cavity is drained from the side through the corresponding through hole, and at the same time, the liquid is drained from the bottom through the bottom inclined reflux hole group, which speeds up the drainage speed of the outer cooling cavity. The laser cladding laminar flow roller provided by the utility model speeds up the filling speed and drainage speed of the outer cooling cavity, avoiding the problem of insufficient filling or incomplete drainage of the outer cooling cavity.
[0029] See also Figure 1 The first reflux hole group includes a plurality of first outer holes 16 and a plurality of first inner holes 17. The plurality of first outer holes 16 and the plurality of first inner holes 17 are all opened in the circumferential direction of the first roller shaft 5. The first outer holes 16 are arranged on the outer side of the first inner holes 17 along the axial direction of the first roller shaft 5. The first outer holes 16 are inclined from one end of the first outer cooling cavity 6 to one end of the through hole toward the outer side of the roller 1. When draining liquid, the liquid in the first outer cooling cavity 6 is more easily discharged into the reflux gap 8 through the plurality of first outer holes 16. At this time, the plurality of first inner holes 17 assist in draining liquid, thereby increasing the draining efficiency. The first inner hole 17 is inclined from one end of the first outer cooling cavity 6 to one end of the through hole toward the inner side of the roller 1. When filling liquid, the liquid in the reflux gap 8 is more easily entered into the first outer cooling cavity 6 through the plurality of first inner holes 17. At this time, the liquid that reaches the bottom of the reflux gap 8 and then flows back enters liquid through the plurality of first outer holes 16, thereby increasing the filling efficiency.
[0030] Preferably, the first outer hole 16 and the first inner hole 17 have the same inclination angle and are both not less than 45°, so as to ensure the angles of liquid inlet and liquid discharge, making the liquid inlet and liquid discharge smoother.
[0031] See also Figure 1The second reflux hole group includes a plurality of second outer holes 18 and a plurality of second inner holes 19. The plurality of second outer holes 18 and the plurality of second inner holes 19 are all opened in the circumferential direction of the second roller shaft 12. The second outer holes 18 are arranged on the outer side of the second inner holes 19 along the axial direction of the second roller shaft 12. The second outer holes 18 are inclined from one end of the second outer cooling cavity 13 to one end of the reflux blind hole 15 toward the outer side of the roller 1. When draining, the liquid in the second outer cooling cavity 13 is more easily discharged into the reflux blind hole 15 through the plurality of second outer holes 18. At this time, the plurality of second inner holes 19 assist in draining and increase the draining efficiency. The second inner holes 19 are inclined from one end of the second outer cooling cavity 13 to one end of the reflux blind hole 15 toward the inner side of the roller 1. When filling with liquid, the liquid in the reflux blind hole 15 can more easily enter the second outer cooling cavity 13 through the multiple second inner holes 19. At this time, the liquid that reaches the bottom of the reflux blind hole 15 and then flows back enters through the multiple second outer holes 18, thereby increasing the filling efficiency.
[0032] Preferably, the second outer hole 18 and the second inner hole 19 have the same inclination angle and are both not less than 45°, so as to ensure the angles of liquid inlet and liquid discharge, making the liquid inlet and liquid discharge smoother.
[0033] Specifically, a plurality of support blocks 20 are circumferentially spaced between the liquid inlet pipe 9 and the through hole. The plurality of support blocks 20 can ensure the stability of the liquid inlet pipe 9, reduce the shaking of the liquid inlet pipe 9, and prevent the reflux gap 8 between the liquid inlet pipe 9 and the through hole from being deformed, thereby affecting the efficiency of liquid discharge or liquid filling.
[0034] Specifically, an outer step platform 21 and an inner step platform 22 are respectively provided at both ends of the inner cavity of the roller 1, and the outer diameter of the outer step platform 21 is larger than the inner diameter of the inner step platform 22. The first outer roller ring 4 and the second outer roller ring 11 are respectively clamped and fixed on the two outer step platforms 21, and the outer step platform 21 can form an axial positioning of the first outer roller ring 4 and the second outer roller ring 11. The first outer roller ring 4 and the second outer roller ring 11 are positioned with the outer step platform 21 and can be fixedly installed by welding or detachably installed by threaded fitting. The first inner roller ring 3 and the second inner roller ring 10 are respectively clamped and fixed on the two inner step platforms 22, and the inner step platform 22 can form an axial positioning of the first inner roller ring 3 and the second inner roller ring 10. Through the fixation of the first outer roller ring 4 and the second outer roller ring 11 with the outer step platform 21, the first inner roller ring 3 and the second inner roller ring 10 and the inner step platform 22 can maintain relative stability, and no secondary fixation is required.
[0035] See also Figure 1The outer side of the first outer roller ring 4 is fixed with a mounting shell 23, the outer side of the mounting shell 23 is installed with an end cover 24, the outer side of the end cover 24 is installed with a water return jacket 25, and one side of the water return jacket 25 is provided with a water return port 26. The outer end of the first roller shaft 5 passes through the mounting shell 23 and the end cover 24 in sequence and extends into the water return jacket 25. The liquid inlet pipe 9 passes through the water return jacket 25 and extends to the outside. When filling the liquid, the outer end of the liquid inlet pipe 9 is connected to the water source, and the liquid enters the interior of the roller 1 through the liquid inlet pipe 9. The water return port 26 remains open during the filling, and the water return port 26 and the liquid inlet pipe 9 are blocked after the liquid is completely filled, so as to avoid the situation that the internal pressure of the cooling chamber causes the difficulty of filling the liquid. When discharging the liquid, the water return port 26 is connected to the external pipeline with a water pump, and the liquid inlet pipe 9 is opened at the same time. The liquid in the cooling chamber of the roller 1 enters the water return jacket 25 through the reflux gap 8, and is finally discharged from the water return port 26.
[0036] Preferably, the first roller 5 is rotatably matched with the mounting housing 23, the end cover 24 and the water return sleeve 25. The first roller 5 is respectively mounted with the housing 23, the end cover 24 and the water return sleeve 25 to realize the rotation relationship through the bearing member, and a corresponding sealing structure is designed to ensure that there is no leakage when the first roller 5 drives the roller 1 to rotate.
[0037] Optionally, the outer end of the second roller 12 is transmission-connected with a motor 27, and the roller 1 with the motor 27 is an active roller. When a plurality of laminar flow rollers are arranged and used together, a belt or a chain can be used to provide power to nearby laminar flow rollers.
[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. Laser cladding laminar roller, characterized in that: include: A roller (1), wherein the outer surface of the roller (1) is provided with a cladding base layer (2); A first roller ring shaft group, the first roller ring shaft group comprises a first inner roller ring (3), a first outer roller ring (4) and a first roller shaft (5), the first outer roller ring (4) and the first inner roller ring (3) are arranged at one end of the inner cavity of the roller (1) along the axial direction of the roller (1) from the outside to the inside, the first roller shaft (5) axially penetrates and connects the first outer roller ring (4) and the first inner roller ring (3), a first outer cooling cavity (6) is formed between the first outer roller ring (4) and the first inner roller ring (3), a plurality of first through holes (7) connected to the first outer cooling cavity (6) are provided in the circumferential direction of the first inner roller ring (3), a through hole is axially provided inside the first roller shaft (5), a first reflux hole group connected to the through hole is obliquely provided in the circumferential direction of the first roller shaft (5), a liquid inlet pipe (9) is axially penetrated in the through hole, and a reflux gap (8) exists between the liquid inlet pipe (9) and the through hole; A second roller ring shaft group, the second roller ring shaft group comprises a second inner roller ring (10), a second outer roller ring (11) and a second roller shaft (12), the second outer roller ring (11) and the second inner roller ring (10) are arranged at the other end of the inner cavity of the roller (1) from the outside to the inside along the axial direction of the roller (1), the second roller shaft (12) axially penetrates and connects the second outer roller ring (11) and the second inner roller ring (10), a second outer cooling cavity (13) is formed between the second outer roller ring (11) and the second inner roller ring (10), a plurality of second through holes (14) connected to the second outer cooling cavity (13) are opened in the circumferential direction of the second inner roller ring (10), a return blind hole (15) is opened in the axial direction of the inner end surface of the second roller shaft (12), and a second return hole group connected to the return blind hole (15) is opened in the circumferential direction of the second roller shaft (12).
2. The laser cladding laminar flow roller according to claim 1, characterized in that: The first reflow hole group comprises a plurality of first outer holes (16) and a plurality of first inner holes (17); the plurality of first outer holes (16) and the plurality of first inner holes (17) are all opened in the circumferential direction of the first roller shaft (5); the first outer holes (16) are arranged on the outer side of the first inner holes (17) along the axial direction of the first roller shaft (5); the first outer holes (16) are inclined from one end of the first outer cooling cavity (6) to one end of the through hole toward the outer side of the roller (1); and the first inner holes (17) are inclined from one end of the first outer cooling cavity (6) to one end of the through hole toward the inner side of the roller (1).
3. The laser cladding laminar flow roller according to claim 2, characterized in that: The first outer hole (16) and the first inner hole (17) have the same inclination angle and are both not less than 45°.
4. The laser cladding laminar flow roller according to claim 1, characterized in that: The second reflow hole group comprises a plurality of second outer holes (18) and a plurality of second inner holes (19); the plurality of second outer holes (18) and the plurality of second inner holes (19) are all opened in the circumferential direction of the second roller shaft (12); the second outer holes (18) are arranged on the outer side of the second inner holes (19) along the axial direction of the second roller shaft (12); the second outer holes (18) are inclined from one end of the second outer cooling cavity (13) to one end of the reflow blind hole (15) toward the outer side of the roller (1); and the second inner holes (19) are inclined from one end of the second outer cooling cavity (13) to one end of the reflow blind hole (15) toward the inner side of the roller (1).
5. The laser cladding laminar flow roller according to claim 4, characterized in that: The inclination angles of the second outer hole (18) and the second inner hole (19) are the same and are not less than 45°.
6. The laser cladding laminar flow roller according to any one of claims 1 to 5, characterized in that: A plurality of support blocks (20) are arranged at circumferential intervals between the liquid inlet pipe (9) and the through hole.
7. The laser cladding laminar flow roller according to any one of claims 1 to 5, characterized in that: An outer step platform (21) and an inner step platform (22) are respectively provided at both ends of the inner cavity of the roller (1); the outer diameter of the outer step platform (21) is larger than the inner diameter of the inner step platform (22); the first outer roller ring (4) and the second outer roller ring (11) are respectively clamped and fixed on the two outer step platforms (21); and the first inner roller ring (3) and the second inner roller ring (10) are respectively clamped and fixed on the two inner step platforms (22).
8. The laser cladding laminar flow roller according to any one of claims 1 to 5, characterized in that: A mounting shell (23) is fixed to the outer side of the first outer roller ring (4), an end cover (24) is mounted on the outer side of the mounting shell (23), a water return jacket (25) is mounted on the outer side of the end cover (24), a water return port (26) is provided on one side of the water return jacket (25), one end of the outer side of the first roller shaft (5) passes through the mounting shell (23) and the end cover (24) in sequence and extends into the water return jacket (25), and the liquid inlet pipe (9) passes through the water return jacket (25) and extends to the outer side.
9. The laser cladding laminar flow roller according to claim 8, characterized in that: The first roller (5) is rotationally matched with the mounting shell (23), the end cover (24) and the water return jacket (25).
10. The laser cladding laminar flow roller according to any one of claims 1 to 5, characterized in that: The outer end of the second roller shaft (12) is transmission-connected to a motor (27).