Uniform roller of hydraulic padder

Abstract

The invention relates to the technical field of rollers, and provides a uniform roller of a hydraulic padder, the uniform roller comprises a roller shaft and end mounting shafts located at the two ends of the roller shaft, the roller shaft is hollow and is provided with a separation barrel, an annular liquid guide cavity is formed between the outer barrel wall of the separation barrel and the inner barrel wall of the roller shaft, and annular liquid collecting cavities are formed in the front end and the rear end of the roller shaft; a plurality of second liquid guiding holes are formed between the annular liquid collecting cavity and the end of the liquid guiding cavity, a front-back through air guiding penetrating hole is formed in the partition cylinder, a spiral flow guiding plate is arranged on the inner wall of the air guiding penetrating hole, and a flow guiding-circulating liquid guiding driving assembly distributed at the axis position in the air guiding penetrating hole is arranged in the center in the air guiding penetrating hole. The uniform roller of the hydraulic padder is ingenious in structural design and has remarkable advantages in the aspects of cooling effect, structural stability, working efficiency and the like. The temperature of the roller during working can be effectively reduced, the performance and the service life of the roller are guaranteed, the outer roller sleeve can be stably installed, and the rolling quality is reliable.

Description

Technical Field

[0001] The invention relates to the technical field of rollers, and in particular to a uniform roller of a hydraulic roller. Background Art

[0002] In many industrial fields such as textile and papermaking, hydraulic roller is a commonly used equipment for rolling materials such as cloth and paper to achieve specific process requirements, such as changing the thickness and flatness of the material. As a key component of hydraulic roller, the performance of roller directly affects the quality and efficiency of rolling.

[0003] In the prior art, a large amount of heat is generated during the operation of the roller, which is mainly caused by the extrusion and friction of the material during the rolling process. If the heat cannot be dissipated in a timely and effective manner, the excessively high temperature will have a negative impact on the material properties of the roller, such as reducing the hardness and toughness of the material, thereby affecting the service life of the roller. At the same time, high temperature may also cause the roller to deform during the rolling process, resulting in quality problems such as uneven thickness and poor flatness of the rolled material, which seriously affects the quality and production efficiency of the product.

[0004] In order to solve the heat dissipation problem of the rollers, the traditional method usually adopts a simple coolant spray or air cooling method. However, these methods have some limitations. For example, although the coolant spray method can take away some heat, due to the uneven distribution of the coolant, it may lead to poor local cooling effect of the rollers and inability to achieve uniform cooling. The air cooling method is limited by the uniformity of air flow and heat dissipation efficiency. For rollers that run at high speed and generate a lot of heat, the cooling effect is often difficult to meet actual needs.

[0005] In addition, the existing roller structure design also has certain deficiencies in ensuring rolling accuracy and stability. For example, the connection between the outer roller sleeve and the roller shaft is not stable enough, which is prone to deviation or shaking during the rolling process, which will directly affect the stability of the rolling quality, cause product defects, and reduce production efficiency and product quality.

[0006] Therefore, this invention proposes a uniform roller of a hydraulic rolling mill to solve the above problems. Summary of the invention

[0007] In order to overcome the defects of the prior art, the object of the present invention is to provide a uniform roller for a hydraulic roller.

[0008] To achieve the above object, the technical solution of the present invention is realized as follows: A uniform roller of a hydraulic calender includes a roller shaft and end mounting shafts at both ends thereof. The roller shaft is hollow inside and is provided with a partition cylinder. An annular liquid guiding cavity is formed between the outer cylinder wall of the partition cylinder and the inner cylinder wall of the roller shaft. Annular liquid collecting cavities are provided inside the front and rear ends of the roller shaft. A plurality of second liquid guiding holes are provided between the annular liquid collecting cavity and the end of the liquid guiding cavity. A gas guiding perforation that penetrates through the front and rear is provided inside the partition cylinder. A spiral flow guiding plate is provided on the inner wall of the gas guiding perforation. A guiding - circulating liquid guiding driving assembly is provided at the center of the inner part of the gas guiding perforation along its inner axis position. The guiding - circulating liquid guiding driving assembly includes a circulating liquid pump distributed at the center axis position inside the partition cylinder. The front and rear liquid inlet and outlet ends of the circulating liquid pump are respectively butted with end positioning pipes. The two end positioning pipes respectively lead to the inside of the two end mounting shafts. Four fixed pipes are installed on the upper, lower, left, and right of the two end positioning pipes. The four fixed pipes are positioned on the inner wall of the end mounting shaft, and the four fixed pipes are respectively communicated with four first liquid guiding holes provided inside the inner wall of the two end mounting shafts. The four first liquid guiding holes at the ends are respectively communicated with the annular liquid collecting cavity at the same side at one end.

[0009] As a preferred technical solution of the invention, four air guiding holes are provided in the end mounting shafts at both ends. The air guiding hole on the left - end mounting shaft communicates the outside and the air guiding perforation. A suction hood is installed on the right - end mounting shaft. The suction hood is communicated with an external suction device and is located at the position of the air guiding hole provided on the right - end mounting shaft.

[0010] As a preferred technical solution of the invention, a cylindrical cooling member is installed inside the liquid guiding cavity. The cylindrical cooling member includes a cylindrical heat conducting sheet and heat dissipating fins. The outer surface of the cylindrical heat conducting sheet is closely attached to the inner wall of the liquid guiding cavity. There are a plurality of heat dissipating fins evenly distributed inside the liquid guiding cavity. The inner wall of each heat dissipating fin supports on the outer wall of the partition cylinder.

[0011] As a preferred technical solution of the invention, the overall outer shell of the circulating liquid pump is set as a horizontally distributed cylinder. It forms a cooling channel for spirally guiding air flow in combination with the partition cylinder and the spiral flow guiding plate on its inner wall.

[0012] As a preferred technical solution of the invention, an outer roller sleeve is provided outside the roller shaft.

[0013] As a preferred technical solution of the invention, the outer roller sleeve includes a fixed sleeve directly sleeved outside the roller shaft and an outer layer installed outside the fixed sleeve.

[0014] As a preferred technical solution of the invention, a number of positioning rings are evenly provided on the outer wall of the outer roller sleeve, and a number of annular positioning grooves adapted to the positioning rings are evenly provided on the inner wall of the fixed sleeve.

[0015] The beneficial effects of the present invention are as follows:

[0016] In terms of cooling effect:

[0017] The liquid guide cavity and the gas guide perforation are separated by a partition cylinder without interference. The liquid guide cavity can effectively accommodate and guide the coolant. The annular liquid collecting cavity is connected to the end of the liquid guide cavity through a second liquid guide hole, which can evenly collect the coolant and recycle it, improving the utilization rate of the coolant.

[0018] The spiral guide plate on the inner wall of the gas guide perforation in the partition cylinder guides the gas to form a spiral flow path, increasing the contact area and contact time between the gas and the coolant. Cooperating with the flow guiding - circulating liquid driving component to push the coolant to circulate, the circulating liquid pump and the partition cylinder and the spiral guide plate form a cooling channel for spiral guiding the air flow, enabling the gas and the coolant to exchange heat more fully, greatly improving the cooling effect, ensuring that the temperature of the roll remains within a suitable range during operation, and avoiding affecting the performance and service life of the roll due to high temperature.

[0019] In terms of structural stability:

[0020] The fixed sleeve of the outer roll sleeve is closely fitted with the roll shaft, and different materials and surface - treated materials can be selected for the outer layer according to different rolling requirements, ensuring the stability of the outer roll sleeve. The positioning ring on the outer wall of the outer roll sleeve cooperates with the annular positioning groove on the inner wall of the fixed sleeve, which can ensure the installation accuracy and stability of the outer roll sleeve on the roll shaft, preventing deviation or shaking during rolling, and thus ensuring the stability of the rolling quality.

[0021] In terms of working efficiency:

[0022] The uniform roll structure of the entire hydraulic rolling machine is reasonably designed, and each component works in coordination. The coolant can circulate quickly, and the gas can form a stable circulating flow. High - efficiency cooling and rolling processes can be achieved without additional complex operations, improving the working efficiency of the entire rolling machine, reducing the downtime caused by cooling or installation problems, and being beneficial to the continuity and high - efficiency of production.

[0023] In summary, the uniform roll structure of this hydraulic rolling machine is ingeniously designed and has significant advantages in terms of cooling effect, structural stability, and working efficiency. It can not only effectively reduce the temperature of the roll during operation, ensuring the performance and service life of the roll, but also ensure the stable installation of the outer roll sleeve and reliable rolling quality. At the same time, it improves the working efficiency of the entire rolling machine, providing a strong guarantee for the efficient operation of the hydraulic rolling machine, and has broad application prospects and important practical value in industries such as textile and paper that require rolling processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the drawings:

[0025] Figure 1 is a half - sectional structural schematic diagram of the present invention;

[0026] Figure 2 Schematic diagram of the distribution of the liquid guiding cavity of the present invention;

[0027] Figure 3 Schematic diagram of the distribution of the roller shaft and the positioning ring of the present invention;

[0028] Figure 4 Schematic diagram of the semi-sectioned structure of the roller shaft of the present invention;

[0029] Figure 5 Schematic diagram of the semi-sectioned structure of the outer roller sleeve of the present invention;

[0030] Figure 6 Schematic diagram of the semi-sectioned structure of the cylindrical cooling member of the present invention;

[0031] Figure 7 Schematic diagram of the structure of the diversion-circulation liquid guiding drive assembly of the present invention;

[0032] Explanation of reference numerals:

[0033] 1. Roller shaft; 2. Outer roller sleeve; 3. Partition cylinder; 4. Cylindrical cooling member; 5. Annular liquid collecting cavity; 6. Air guiding perforation; 7. Spiral guide plate; 8. Diversion-circulation liquid guiding drive assembly; 9. Air extraction hood;

[0034] 11. End mounting shaft; 12. Positioning ring; 13. Liquid guiding cavity;

[0035] 111. Air guiding hole;

[0036] 21. Fixed sleeve; 22. Outer layer;

[0037] 221. Annular positioning groove;

[0038] 41. Cylindrical heat conducting sheet; 42. Heat dissipation fins;

[0039] 51. First liquid guiding hole; 52. Second liquid guiding hole;

[0040] 81. Circulating liquid pump; 82. End positioning tube; 83. Fixed conduit. Detailed implementation manners

[0041] Next, the present invention will be further described in detail with reference to the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Based on the embodiments of the invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the invention.

[0042] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the invention, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0043] In addition, "a plurality of" means two or more. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the invention.

[0044] Please refer to the attached drawings of the specification Figures 1-7 , the present invention provides a uniform roll for a hydraulic calender, and its structure includes a roll shaft 1 and end mounting shafts 11 located at both ends thereof. The roll shaft 1 is hollow inside, and a partition cylinder 3 is installed inside. The partition cylinder 3 serves to separate the liquid guide cavity 13 and the air guide perforation 6, so that the work of the two does not interfere with each other. An annular liquid guide cavity 13 is formed between the outer cylinder wall of the partition cylinder 3 and the inner cylinder wall of the roll shaft 1. This liquid guide cavity 13 is mainly used to accommodate and guide the coolant to cool the roll during the working process. Annular liquid collecting cavities 5 are provided inside the front and rear ends of the roll shaft 1. The annular liquid collecting cavities 5 are connected to the ends of the liquid guide cavity 13 through a plurality of second liquid guide holes 52, so that the coolant in the liquid guide cavity 13 can be evenly collected into the annular liquid collecting cavities 5 for subsequent recycling. A front-and-rear through air guide perforation 6 is provided inside the partition cylinder 3. A spiral flow guide plate 7 is provided on the inner wall of the air guide perforation 6. The function of the spiral flow guide plate 7 is to guide the gas to form a spiral flow path inside the air guide perforation 6, increasing the contact area and contact time between the gas and the coolant, thereby improving the cooling effect. A flow guiding - circulating liquid driving assembly 8 is provided at the center of the inner part of the air guide perforation 6 and is distributed along its inner axis position. This assembly is mainly responsible for driving the circulating flow of the coolant and the pumping of the gas. The flow guiding - circulating liquid driving assembly 8 includes a circulating liquid pump 81 distributed along the central axis position inside the partition cylinder 3. The front and rear liquid inlet and outlet ends of the circulating liquid pump 81 are respectively butted with end positioning pipes 83. The two end positioning pipes 83 at both ends respectively lead to the inside of the two end mounting shafts 11 at both ends. Four fixed pipes 83 are installed on the upper, lower, left and right sides of the two end positioning pipes 83. The four fixed pipes 83 are positioned on the inner wall of the end mounting shafts 11, and the four fixed pipes 83 are respectively connected to four first liquid guide holes 51 provided inside the inner walls of the two end mounting shafts 11 at both ends. The four first liquid guide holes 51 at the ends are all connected to the annular liquid collecting cavity 5 on the same side at one end. Through the operation of the circulating liquid pump 81, the coolant in the annular liquid collecting cavity 5 is pumped into the end positioning pipe 83, and then flows back to the annular liquid collecting cavity 5 through the fixed pipes 83 and the first liquid guide holes 51, forming a continuous circulating flow path of the coolant, so as to realize the uniform cooling of the roll.

[0045] The end mounting shafts 11 at both ends are provided with four air guide holes 111. The air guide holes 111 on the left end mounting shaft 11 are connected to the outside and the air guide through hole 6, and the external gas can enter the air guide through hole 6 through the air guide holes 111. The right end mounting shaft 11 is provided with an exhaust hood 6, which is connected to the external exhaust device, and the exhaust hood 6 is located at the position of the air guide holes 111 set on the right end mounting shaft 11. After the exhaust device is started, the gas in the air guide through hole 6 is extracted through the exhaust hood 6, forming a negative pressure, which prompts the external gas to continuously enter the air guide through hole 6 from the air guide hole 111 at the left end, thereby forming a circulating flow of gas, further enhancing the cooling effect.

[0046] A cylindrical cooling member 4 is installed inside the liquid-conducting cavity 13, and the cylindrical cooling member 4 includes a cylindrical heat-conducting sheet 41 and a heat-dissipating fin 42. The outer surface of the cylindrical heat-conducting sheet 41 is tightly fitted on the inner wall of the liquid-conducting cavity 13, and it can quickly transfer the heat on the roller 1 to the coolant. There are multiple heat-dissipating fins 42 evenly distributed inside the liquid-conducting cavity 13, and the inner wall of each heat-dissipating fin 42 is supported on the outer wall of the partition 3. The design of the heat-dissipating fin 42 increases the contact area with the coolant, and can more effectively transfer the heat conducted from the cylindrical heat-conducting sheet 41 to the inside of the coolant.

[0047] The overall shell of the circulating liquid pump 81 is set to be a horizontally distributed cylindrical shape, which is combined with the partition 3 and the spiral guide plate 7 on its inner wall to form a cooling channel for spirally guiding airflow. When the circulating liquid pump 81 is working, it can not only promote the circulation of the coolant in the liquid guide cavity 13, but also cooperate with the gas in the air guide perforation 6 to form a spiral flow along the spiral guide plate 7. This spiral airflow flow mode can more fully exchange heat with the coolant, further improve the cooling effect, and ensure that the temperature of the roller is kept within a suitable range during operation.

[0048] An outer roller sleeve 2 is provided on the outside of the roller shaft 1, and the outer roller sleeve 2 is mainly used for rolling the fabric. The outer roller sleeve 2 includes a fixed sleeve 21 directly sleeved on the outside of the roller shaft 1, and the fixed sleeve 21 is closely matched with the roller shaft 1 to ensure the stability of the outer roller sleeve 2. And an outer layer 22 installed on the outside of the fixed sleeve 21, the outer layer 22 can be selected from different materials and surface-treated materials according to different rolling requirements to meet the rolling requirements of various fabrics.

[0049] A plurality of positioning rings 12 are evenly arranged on the outer wall of the outer roller sleeve 2, and a plurality of annular positioning grooves 221 adapted to the positioning rings 12 are evenly arranged on the inner wall of the fixed sleeve 21. The cooperation between the positioning rings 12 and the annular positioning grooves 221 can ensure the installation accuracy and stability of the outer roller sleeve 2 on the roller shaft 1, prevent the outer roller sleeve 2 from deflecting or shaking during the rolling process, thereby ensuring the stability of the rolling quality.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

[0051] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included within the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

[0052] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A uniform roller of a hydraulic roller, comprising a roller shaft (1) and end mounting shafts (11) located at both ends thereof, characterized in that: The roller shaft (1) is hollow inside and is provided with a spacer (3). An annular liquid guiding cavity (13) is formed between the outer wall of the spacer (3) and the inner wall of the roller shaft (1). The front and rear ends of the roller shaft (1) are provided with annular liquid collecting cavities (5). A plurality of second liquid guiding holes (52) are provided between the annular liquid collecting cavities (5) and the ends of the liquid guiding cavities (13). The spacer (3) is provided with a front-to-back through-gas guiding hole (6). The inner wall of the gas guiding hole (6) is provided with a spiral guide plate (7). The inner center of the gas guiding hole (6) is provided with a guiding-circulating liquid guiding drive component (8) distributed at the inner axis position thereof. The guiding-circulating liquid guiding drive component (8) comprises a A circulating liquid pump (81) is distributed at the central axis position inside the partition (3), and the front and rear inlet and outlet liquid ends of the circulating liquid pump (81) are connected to end positioning tubes (83), and the end positioning tubes (83) at both ends are correspondingly connected to the inside of the end mounting shafts (11) at both ends. The end positioning tubes (83) at both ends are installed with four fixed conduits (83) on the top, bottom, left and right sides. The four fixed conduits (83) are positioned on the inner wall of the end mounting shaft (11), and the four fixed conduits (83) are respectively connected to the four first liquid guide holes (51) set inside the inner wall of the end mounting shaft (11) at both ends, and the four first liquid guide holes (51) at the end are all connected to the annular liquid collecting cavity (5) at one end of the same side.

2. A uniform roller for a hydraulic roller mill according to claim 1, characterized in that: The end mounting shafts (11) at both ends are provided with four air guide holes (111); the air guide holes (111) on the left end mounting shaft (11) are connected to the outside and the air guide through hole (6); the right end mounting shaft (11) is provided with an exhaust hood (6); the exhaust hood (6) is connected to an external exhaust device; the exhaust hood (6) is located at the position where the air guide holes (111) provided on the right end mounting shaft (11) are located.

3. A uniform roller for a hydraulic roller mill according to claim 1, characterized in that: A cylindrical cooling component (4) is installed inside the liquid guiding cavity (13), and the cylindrical cooling component (4) includes a cylindrical heat conductive sheet (41) and heat dissipation fins (42). The outer surface of the cylindrical heat conductive sheet (41) is tightly fitted on the inner wall of the liquid guiding cavity (13), and there are a plurality of heat dissipation fins (42) evenly distributed inside the liquid guiding cavity (13), and the inner wall of each heat dissipation fin (42) is supported on the outer wall of the partition tube (3).

4. A uniform roller for a hydraulic roller mill according to claim 1, characterized in that: The overall outer shell of the circulating liquid pump (81) is arranged in a horizontally distributed cylindrical shape, and is combined with the partition (3) and the spiral guide plate (7) on the inner wall thereof to form a cooling channel for spirally guiding airflow.

5. The uniform roller of a hydraulic roller mill according to claim 1, characterized in that: An outer roller sleeve (2) is arranged outside the roller shaft (1).

6. A uniform roller for a hydraulic roller mill according to claim 5, characterized in that: The outer roller sleeve (2) comprises a fixed sleeve (21) directly sleeved on the outside of the roller shaft (1), and an outer layer (22) installed on the outside of the fixed sleeve (21).

7. A uniform roller for a hydraulic roller mill according to claim 6, characterized in that: A plurality of positioning rings (12) are evenly arranged on the outer wall of the outer roller sleeve (2), and a plurality of annular positioning grooves (221) adapted to fit the positioning rings (12) are evenly arranged on the inner wall of the fixed sleeve (21).

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