Polyurethane roller with built-in cooling channel

Abstract

The utility model discloses a polyurethane roller with a built-in cooling channel, which belongs to the field of polyurethane rollers, and comprises a main body, a cooling mechanism is fixedly connected inside the main body through end covers at two ends, the cooling mechanism comprises a heat conduction pipe, a heat conduction sheet and a heat dissipation baffle plate, the heat conduction sheet is fixedly connected on the outer wall of the heat conduction pipe, and the heat dissipation baffle plate is fixedly connected on the outer wall of the heat conduction pipe. The heat conduction pipe is fixedly connected to the interior of the main body through heat conduction pieces, a plurality of heat dissipation baffle plates are further fixedly connected to the interior of the heat conduction pipe, and by arranging a cooling mechanism comprising the heat conduction pipe, the heat conduction pieces and the heat dissipation baffle plates, the heat conduction pieces are fixed to the outer wall of the heat conduction pipe in an annular array mode and inserted into caulking grooves in the inner wall of a transverse channel of the end wall of the main body; the heat conduction pipe is stably installed in the main body, the contact area between the heat conduction pipe and the main body is greatly increased, the conduction efficiency of heat from the main body to the heat conduction pipe is effectively improved, the defect that the heat conduction performance of a polyurethane material is limited is overcome, and heat in the roller can be more efficiently conducted out.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane rollers, and in particular to a polyurethane roller with a built-in cooling channel. Background Technology

[0002] In industrial production, polyurethane rollers serve as key transmission and conveying components. Thanks to the excellent wear resistance, corrosion resistance, high elasticity, and good tear resistance of polyurethane material, they demonstrate significant advantages in various complex and harsh industrial environments. They effectively reduce damage to workpieces during rolling conveying while ensuring high durability, thus making them widely used in industrial scenarios with stringent temperature control requirements, such as the transmission and conveying processes in cleaning, etching, and electroplating equipment.

[0003] In these industrial settings, polyurethane rollers are prone to generating heat during operation. On one hand, friction is inevitable between the rollers and the workpieces and transmission components during transmission, generating heat and gradually raising the roller temperature. On the other hand, in some cleaning, etching, and electroplating processes, the rollers may come into direct contact with hot workpieces or operate in high-temperature environments, further exacerbating the temperature rise. Excessive roller temperature can lead to performance degradation, deformation, or even damage, severely impacting the stable operation of the equipment and shortening the roller's lifespan.

[0004] In existing technologies, to address the issue of roller temperature rise, a built-in cooling channel is used to cool and reduce the temperature of the polyurethane roller. Specifically, circulating cooling water is delivered to one end of the polyurethane roller by a conveying device, enters the internal cavity (i.e., the cooling channel) for heat exchange, and then exits from the other end of the polyurethane roller and flows back into the refrigeration equipment. This cycle repeats continuously. Through the contact between the cooling medium and the roller, the heat generated by the roller is carried away, thereby achieving the cooling and reduction of the roller temperature.

[0005] However, in actual use, the existing polyurethane rollers with built-in cooling channels exhibit the following problems:

[0006] First, the circulating cooling water travels quickly through the cooling channels, limiting the contact time between the cooling medium and the heat inside the rollers, resulting in insufficient heat exchange. The rapid flow of cooling water within the channels means it is discharged before fully absorbing the heat from the rollers, leaving a significant amount of heat inside and failing to effectively reduce the roller temperature.

[0007] Secondly, the polyurethane rollers themselves have limited thermal conductivity, making it difficult to efficiently transfer internal heat to the cooling water. While polyurethane material possesses many excellent properties, its relatively poor thermal conductivity results in slow heat transfer within the rollers, hindering rapid heat exchange with the cooling water on the surface of the cooling channels. This means that even when cooling water flows within the channels, it cannot effectively absorb the heat accumulated inside the rollers, significantly reducing the cooling effect. Utility Model Content

[0008] The main objective of this invention is to provide a polyurethane roller with a built-in cooling channel, which can effectively solve the problems in the background art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A polyurethane roller with a built-in cooling channel includes a main body. A cooling mechanism is fixedly connected to the inside of the main body through end caps at both ends. The cooling mechanism includes a heat-conducting pipe, a heat-conducting fin, and a heat dissipation baffle. The heat-conducting fin is fixedly connected to the outer wall of the heat-conducting pipe, and the heat-conducting pipe is fixedly connected to the inside of the main body through the heat-conducting fin. Several heat dissipation baffles are also fixedly connected to the inside of the heat-conducting pipe. A fixing rod is fixedly connected to the inner side wall of the end cap, and a spring is fitted on the outside of the fixing rod. An L-shaped plate is fixedly connected to the outer end of the spring, and the end cap is connected to the end wall of the main body through the L-shaped plate.

[0011] As a preferred technical solution of this utility model, a transverse channel is provided on the end wall of the main body, and a number of slots are provided on the inner wall of the transverse channel in a ring array.

[0012] As a preferred technical solution of this utility model, a set of symmetrical positioning grooves are respectively opened on the left and right end walls of the main body, and a bayonet communicating with the positioning grooves is opened on the outer wall of the main body.

[0013] As a preferred technical solution of this utility model, the heat pipe is inserted and installed in the transverse channel, and a number of heat-conducting plates are fixedly installed on the outer wall of the heat pipe in a ring array. The heat-conducting plates are inserted and installed in the groove. A number of heat dissipation baffles are also fixedly installed on the inner wall of the heat pipe in a transverse array, and the adjacent heat dissipation baffles are staggered vertically. The heat dissipation baffles also form a serpentine cooling cavity inside the heat pipe.

[0014] As a preferred technical solution of this utility model, a drive shaft is fixedly installed on the outer side wall of the end cap, and an inlet and outlet are provided on the end wall of the drive shaft. A fixing ring is fixedly installed on the inner side wall of the end cap, and the fixing ring is connected to the inlet and outlet. A set of symmetrical sealing rings is also fixedly fitted on the outer wall of the fixing ring.

[0015] As a preferred technical solution of this utility model, a set of symmetrical vertical openings are provided on the side wall of the end cap, and a fixing rod is fixedly installed inside the vertical opening. A spring is fitted on the outside of the fixing rod, and the inner end of the spring is fixedly installed inside the vertical opening. An L-shaped plate is fixedly installed on the top of the spring, and a connecting hole is provided on the top surface of the horizontal part of the L-shaped plate. The L-shaped plate is movably installed with the fixing rod through the connecting hole and passes through the vertical opening, and the vertical part of the L-shaped plate is inserted into the bayonet.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, a cooling mechanism comprising a heat-conducting pipe, heat-conducting plates, and a heat dissipation baffle is provided. The heat-conducting plates are fixed in a ring array on the outer wall of the heat-conducting pipe and inserted into the grooves in the inner wall of the transverse channel of the main body end wall. This not only ensures that the heat-conducting pipe is stably installed inside the main body, but also greatly increases the contact area between the heat-conducting pipe and the main body, effectively improving the heat conduction efficiency from the main body to the heat-conducting pipe. This overcomes the limitation of the thermal conductivity of polyurethane material itself and can more efficiently dissipate the heat inside the roller.

[0018] Meanwhile, the horizontally arrayed and staggered heat dissipation baffles inside the heat pipe form a serpentine cooling cavity, which greatly extends the flow path of the cooling medium in the heat pipe and increases the contact time between the cooling medium and the heat pipe. This allows the cooling medium to fully absorb the heat transferred from the heat pipe, significantly improving the heat exchange efficiency. It solves the problem of insufficient heat exchange due to the fast passage time of circulating cooling water in the cooling channel, thereby more effectively reducing the roller temperature, preventing performance degradation, deformation or even damage caused by overheating, ensuring stable operation of the equipment, and extending the service life of the roller.

[0019] In addition, a fixing rod, spring and L-shaped plate are set inside the side wall of the end cover. Through the elastic action of the spring, the vertical part of the L-shaped plate can be inserted into the bayonet on the outer wall of the main body to achieve a stable connection between the end cover and the main body. This connection method is simple to operate and reliable. Moreover, it is convenient to maintain or replace the cooling mechanism in a timely manner if subsequent cooling mechanism malfunctions such as scaling and blockage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an enlarged schematic diagram of the end structure of the main body of this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the overall structure of the cooling mechanism of this utility model;

[0023] Figure 4 This is a structurally disassembled schematic diagram of the end cap of this utility model;

[0024] Figure 5 This is a schematic diagram of the left side of the end cap structure of this utility model;

[0025] Figure 6 This is a schematic cross-sectional view of the overall structure of this utility model.

[0026] In the diagram: 1. Main body; 2. End cap; 3. Cooling mechanism; 4. Horizontal channel; 5. Embedded groove; 6. Positioning groove; 7. Bayonet; 8. Heat conduction pipe; 9. Heat conduction plate; 10. Heat dissipation baffle; 11. Serpentine cooling chamber; 12. Drive shaft; 13. Inlet and outlet; 14. Fixing ring; 15. Sealing ring; 16. Vertical opening; 17. Fixing rod; 18. Spring; 19. L-shaped plate; 20. Connecting hole. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1 - Figure 6 As shown, a polyurethane roller with a built-in cooling channel includes a main body 1. A cooling mechanism 3 is fixedly connected to the inside of the main body 1 through end caps 2 at both ends. The cooling mechanism 3 includes a heat-conducting pipe 8, a heat-conducting plate 9, and a heat dissipation baffle 10. The heat-conducting plate 9 is fixedly connected to the outer wall of the heat-conducting pipe 8, and the heat-conducting pipe 8 is fixedly connected to the inside of the main body 1 through the heat-conducting plate 9. Several heat dissipation baffles 10 are also fixedly connected to the inside of the heat-conducting pipe 8. A fixing rod 17 is fixedly connected to the inner side wall of the end cap 2, and a spring 18 is fitted on the outside of the fixing rod 17. An L-shaped plate 19 is fixedly connected to the outer end of the spring 18, and the end cap 2 is connected to the end wall of the main body 1 through the L-shaped plate 19.

[0029] like Figure 2 As shown, a transverse channel 4 is provided on the end wall of the main body 1, and several grooves 5 are provided in a ring array on the inner wall of the transverse channel 4. The transverse channel 4 provides a channel for the insertion of the heat pipe 8, so that the heat pipe 8 can be accurately installed into the body 1. On the other hand, the grooves 5 in the ring array cooperate with the heat-conducting plate 9 to increase the contact area between the heat pipe 8 and the main body 1, which is conducive to the rapid conduction of heat from the main body 1 to the heat pipe 8, improving the heat conduction efficiency, overcoming the disadvantage of the limited thermal conductivity of polyurethane material itself, thereby more effectively reducing the temperature of the main body 1, preventing performance degradation, deformation or even damage caused by overheating, ensuring stable operation of the equipment, and extending the service life of the roller.

[0030] like Figure 2 As shown, a set of symmetrical positioning grooves 6 are respectively opened on the left and right end walls of the main body 1, and a bayonet 7 communicating with the positioning grooves 6 is opened on the outer wall of the main body 1. The positioning grooves 6 and bayonet 7 are used to cooperate with the L-shaped plate 19 on the side wall of the end cover 2 to achieve a stable connection between the end cover 2 and the main body 1.

[0031] like Figure 3 and Figure 6 As shown, the heat pipe 8 is inserted into the transverse channel 4, and several heat-conducting plates 9 are fixedly installed on the outer wall of the heat pipe 8 in a ring array. The heat-conducting plates 9 are inserted into the groove 5. Several heat dissipation baffles 10 are also fixedly installed on the inner wall of the heat pipe 8 in a transverse array, and the adjacent heat dissipation baffles 10 are staggered vertically. The heat dissipation baffles 10 also form a serpentine cooling cavity 11 inside the heat pipe 8. The heat-conducting plates 9 increase the contact area between the heat pipe 8 and the main body 1, improve the heat conduction efficiency, and enable the heat of the main body 1 to be transferred to the heat source more quickly. On the heat pipe 8, the serpentine cooling cavity 11 formed by the heat dissipation baffle 10 greatly extends the flow path of the cooling medium in the heat pipe 8, increases the contact time between the cooling medium and the heat pipe 8, and enables the cooling medium to fully absorb the heat transferred from the heat pipe 8. Among them, the heat dissipation baffle 10 can quickly dissipate the heat absorbed by the heat pipe 8 to the cooling water, which significantly improves the heat exchange efficiency and solves the problem of insufficient heat exchange due to the fast passage time of the circulating cooling water in the cooling channel. This more effectively reduces the temperature of the main body 1, ensures stable operation of the equipment, and extends the service life of the roller.

[0032] like Figure 4 and Figure 5 As shown, a drive shaft 12 is fixedly installed on the outer side wall of the end cover 2, and an inlet and outlet water port 13 is provided on the end wall of the drive shaft 12 for the entry and exit of the cooling medium. A fixing ring 14 is fixedly installed on the inner side wall of the end cover 2, and the fixing ring 14 is connected to the inlet and outlet water port 13 so that the cooling medium can flow smoothly into or out of the heat conduction pipe 8 from the inlet and outlet water port 13. A set of symmetrical sealing rings 15 are also fixedly fitted on the outer wall of the fixing ring 14. The sealing rings 15 can be in close contact with the inner wall of the heat conduction pipe 8 to play a sealing role and prevent the cooling medium from leaking.

[0033] like Figure 4 and Figure 5As shown, a set of symmetrical vertical openings 16 are provided on the side wall of the end cap 2, and a fixing rod 17 is fixedly installed inside the vertical opening 16. A spring 18 is fitted outside the fixing rod 17, and the inner end of the spring 18 is fixedly installed inside the vertical opening 16. An L-shaped plate 19 is fixedly installed on the top of the spring 18, and a connecting hole 20 is provided on the top surface of the horizontal part of the L-shaped plate 19. The L-shaped plate 19 is movably installed with the fixing rod 17 through the connecting hole 20 and passes through the vertical opening 16. The vertical part of the L-shaped plate 19 is inserted into the clip. When installing the end cover 2, press the L-shaped plate 19 inward, compress the spring 18, and the vertical part of the L-shaped plate 19 can smoothly enter the positioning groove 6 of the main body 1. After the end cover 2 is installed in place, release the L-shaped plate 19, and the elastic force of the spring 18 will cause the vertical part of the L-shaped plate 19 to insert into the slot 7 installed on the outer wall of the main body 1, so as to achieve a stable connection between the end cover 2 and the main body 1. The installation and removal of the end cover 2 can be completed simply by pressing and releasing the L-shaped plate 19, which improves the installation and maintenance efficiency of the cooling mechanism 3.

[0034] The specific working principle of the polyurethane roller with built-in cooling channels is as follows:

[0035] Insert the heat pipe 8 into the transverse channel 4 from one end of the main body 1, and insert the heat-conducting plate 9 installed on the outer wall of the heat pipe 8 into the groove 5 opened on the inner wall of the transverse channel 4, until the heat pipe 8 is completely inserted into the interior of the transverse channel 4. Then, install the end cap 2 onto both ends of the main body 1. Press the L-shaped plate 19 protruding on the outer wall of the end cap 2. The L-shaped plate 19 will move in the opposite direction through the connecting hole 20 opened on the top surface of the transverse part along the vertical opening 16 opened on the side wall of the end cap 2 of the fixing rod 17, and force the spring 18 fitted on the fixing rod 17 to tighten, until the vertical part of the L-shaped plate 19 can be inserted into the positioning groove 6 opened on the end wall of the main body 1. Then, release the pressure on the L-shaped plate 19. The force causes the spring 18 to elastically extend and push the L-shaped plate 19 outward until its vertical part is inserted into the bayonet 7. This allows the end cap 2 to be quickly installed and fixed to both ends of the main body 1, and also limits and fixes the cooling mechanism 3. Simultaneously, the fixing ring 14 installed on the inner wall of the end cap 2 is inserted into both ends of the heat pipe 8. During insertion, the fixing ring 14 forces the sealing ring 15 fitted on the outer wall to elastically deform, causing the sealing ring 15 to fit tightly against the inner wall of the heat pipe 8. This ensures the seal after the cooling water enters the heat pipe 8, preventing leakage. When the polyurethane roller generates heat during use, the heat is first transferred to the part tightly fitted to the main body 1. The heat-conducting plates 9, which are in close contact, are fixed to the outer wall of the heat-conducting pipe 8 in a ring array and inserted into the grooves 5 in the inner wall of the transverse channel 4 of the main body 1. This greatly increases the contact area between the heat-conducting pipe 8 and the main body 1, allowing heat to be transferred quickly and efficiently from the main body 1 to the heat-conducting pipe 8. At the same time, the cooling medium flows in from the inlet / outlet 13 on the outer wall of the drive shaft 12 of the end cap 2, passes through the fixing ring 14 and enters the interior of the heat-conducting pipe 8. The heat dissipation baffles 10, which are fixed in a transverse array on the inner wall of the heat-conducting pipe 8 and are arranged in an alternating vertical arrangement, form a serpentine cooling cavity 11. After entering the heat-conducting pipe 8, the cooling medium flows along the serpentine cooling cavity 11 in a tortuous manner, greatly extending the cooling time. The flow path of the medium within the heat pipe 8 increases the contact time between the cooling medium and the heat pipe 8. During the flow, the cooling medium fully absorbs the heat transferred from the heat pipe 8, while the heat dissipation baffle 10 can further dissipate the heat absorbed by the heat pipe 8 to the cooling medium quickly, significantly improving the heat exchange efficiency. The cooling medium that has absorbed heat then flows out from the inlet / outlet 13 at the other end and flows back to the refrigeration equipment for cooling. This cycle repeats continuously, carrying away the heat generated by the main body 1, thereby effectively reducing the temperature of the polyurethane roller, improving the cooling effect on the polyurethane roller, preventing performance degradation, deformation, or even damage due to overheating, ensuring stable operation of the equipment, and thus extending the service life of the polyurethane roller.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polyurethane roller with built-in cooling channels comprising a body (1), characterized in that: The main body (1) is fixedly connected to a cooling mechanism (3) through end caps (2) at both ends. The cooling mechanism (3) includes a heat pipe (8), a heat-conducting plate (9), and a heat dissipation baffle (10). The heat-conducting plate (9) is fixedly connected to the outer wall of the heat pipe (8), and the heat pipe (8) is fixedly connected to the inside of the main body (1) through the heat-conducting plate (9). Several heat dissipation baffles (10) are also fixedly connected inside the heat pipe (8). A fixing rod (17) is fixedly connected to the inner side wall of the end cap (2), and a spring (18) is fitted on the outside of the fixing rod (17). An L-shaped plate (19) is fixedly connected to the outer end of the spring (18), and the end cap (2) is connected to the end wall of the main body (1) through the L-shaped plate (19).

2. A polyurethane roller with built-in cooling channels as claimed in claim 1, characterized in that: The main body (1) has a transverse channel (4) on its end wall, and the inner wall of the transverse channel (4) has a number of slots (5) arranged in a ring array.

3. A polyurethane roller with built-in cooling channels as claimed in claim 2, characterized in that: A set of symmetrical positioning grooves (6) are respectively opened on the left and right end walls of the main body (1), and a bayonet (7) communicating with the positioning grooves (6) is opened on the outer wall of the main body (1).

4. A polyurethane roller with built-in cooling channels as claimed in claim 3, wherein: The heat pipe (8) is inserted into the transverse channel (4), and several heat-conducting plates (9) are fixedly installed on the outer wall of the heat pipe (8) in a ring array. The heat-conducting plates (9) are inserted into the groove (5). Several heat dissipation baffles (10) are also fixedly installed on the inner wall of the heat pipe (8) in a transverse array. The adjacent heat dissipation baffles (10) are staggered vertically. The heat dissipation baffles (10) also form a serpentine cooling cavity (11) inside the heat pipe (8).

5. A polyurethane roller with built-in cooling channels as claimed in claim 4, wherein: A drive shaft (12) is fixedly installed on the outer side wall of the end cap (2), and an inlet and outlet (13) are provided on the end wall of the drive shaft (12). A fixing ring (14) is fixedly installed on the inner side wall of the end cap (2), and the fixing ring (14) and the inlet and outlet (13) are interconnected. A set of symmetrical sealing rings (15) are also fixedly fitted on the outer wall of the fixing ring (14).

6. A polyurethane roller with built-in cooling channels as claimed in claim 5, characterized in that: The end cap (2) has a set of symmetrical vertical openings (16) on its side wall, and a fixing rod (17) is fixedly installed inside the vertical opening (16). A spring (18) is fitted on the outside of the fixing rod (17), and the inner end of the spring (18) is fixedly installed inside the vertical opening (16). An L-shaped plate (19) is fixedly installed on the top of the spring (18), and a connecting hole (20) is opened on the top surface of the horizontal part of the L-shaped plate (19). The L-shaped plate (19) is movably installed with the fixing rod (17) through the connecting hole (20) and passes through the vertical opening (16), and the vertical part of the L-shaped plate (19) is inserted into the bayonet (7).

Images